Who Do You Think You Are?

Actor Layton Williams finds generations of Londoners in his family and is delighted to find they walked the same streets as him. In Jamaica, he makes some distressing discoveries.

Ross Kemp's ancestral detective hunt leads to a marine drummer boy from the Napoleonic era and his great-grandfather’s experiences in the merchant navy during two world wars.

In an unexpected twist, Mishal Husain’s journey into her family tree takes her from India to the east coast of the USA, where she discovers some revolutionary ancestors.

Worthy of a film plot line, Andrew Garfield’s family history takes him from Nazi-occupied Poland to early Hollywood glamour as he uncovers stories which veer from tragedy to hope.

Melanie Chisholm is fascinated to discover that her ancestors include a moneylender, a campaigner for social reform and a family fleeing the famine in Ireland.

Paddy McGuinness uncovers his grandfather’s vital work in World War Two, how his other grandfather was involved in the Boer War and the family’s journey from Ireland to Bolton.

Vicky McClure goes on an emotional journey to Taiwan to find out what happened when her great-grandfather was captured as a prisoner of war in World War Two.

Chris and Xand van Tulleken discover more about their Dutch heritage. Their research uncovers stories of ambition and true love but also a connection to a shameful part of history.

Kevin Clifton investigates the rumour of an ancestor from Canada’s First Nations, taking him on an extraordinary journey to the country’s remote 18th-century trading posts.

Adventurer Bear Grylls discovers the stories behind the top secret documents hidden in his grandfather’s wartime trunk and is delighted by a Scottish royal connection.

As actress Claire Foy delves into her family tree, the personal testimony she uncovers reveals stories of tragedy and an accusation of murder that bring communities together.

Andrew Lloyd Webber is astonished to uncover stories from his family’s history that uncannily parallel his own life, including an ancestor with a famous cello-playing brother!

Sue Perkins delves into the German branch of her family, uncovering a harrowing tale of refugees fleeing back and forth across east European borders during the Second World War.

Presenter and former footballer Alex Scott learns about her Jewish ancestry and travels to Jamaica for the first time in her life to find out about her great-great-grandmother.

Shakespearean actor, movie star and national treasure Dame Judi Dench's journey begins with her father Reginald Dench, who never spoke of his experiences during the First World War, as she tries to find out how he won his gallantry medals. Judi’s investigations then take a truly epic turn, leading her to 16th-century Denmark and nobility. Judi also discovers, to her delight, some incredible Shakespearean links.

Comedian Josh Widdicombe embarks on a rollercoaster ride through his extraordinary family history. After a less than promising start with an ancestor who was cut out of the family fortune, Josh is delighted to discover a courtier with very personal access to King Charles I. From there it’s a dizzying journey back to Elizabethan and Tudor nobility by way of a royal love triangle, through an incredible ancestral line that prompts Josh to ask the expert he meets, 'Be honest. As a historian, are you really jealous?' English

Oscar-winning actor Kate Winslet follows a rumour of Scandinavian ancestry on her mother's side of the family and is delighted to find that she has Swedish heritage.

In a first for the series, father-and-son comedy double-act Jack and Michael Whitehall join forces to investigate their family tree.

Actor Naomie Harris’s dramatic discoveries in this episode inspire her to anger, sadness and tears of joy. On a journey from Trinidad to Grenada to Jamaica, Naomie exposes her four-times-great grandfather’s involvement in the exploitation of so-called 'liberated Africans' shortly after the abolition of slavery, is delighted to discover the identify of her African five-times-great grandmother, and, in nearer generations, uncovers a family story of tragic poverty in Jamaica’s capital, Kingston.

'Harry Potter' star Daniel Radcliffe discovers that the Hatton Garden robbery of his great-grandfather’s jewellery business was far more dark and dramatic than he ever imagined, while an unseen cache of his great-great-uncle’s letters reveals a heart-wrenching First World War love story.

Iconic pop star Boy George grew up in south London in an Irish family. George expects to find a lot of sadness in his family tree. He knows that his maternal grandmother was found wandering the streets of Dublin as a small child and put in a children's home and wants to find out how she came to be in such a dire situation. He's also heard that another ancestor was hanged in Dublin's Mountjoy Gaol and is somehow connected to Kevin Barry who was commemorated in a well-known Irish rebel song. As George uncovers the grim details of what really happened to his grandmother and his great uncle, he also delights in a new sense of his family being truly part of Irish history.

Comedian Lee Mack was born Lee McKillop in the north of England, just like his McKillop great-grandfather, who was also a comedian, known as Billy Mac. Lee has a few playbills from Billy Mac's variety hall performances, but knows little more about him. Not long into his journey, Lee discovers that his great-grandfather was passionate about more than making people laugh. Billy Mac joined the first ever pals battalion in Liverpool at the start of the First World War and honed his act at the front lines in the Battle of the Somme. Lee is also curious about his maternal grandad Joe's upbringing - deserted by his unwed mother and raised by his grandparents in County Mayo at the time of the Irish Civil War.

Actress Olivia Colman claims to be 'the least adventurous person I know.' As for her ancestors, apart from a rumour that there was a Frenchwoman somewhere in her family tree, Olivia thinks they are largely from Norfolk, so she is astonished to discover that she needs to travel to India to find out more about her great-great-great-grandmother Harriot. Olivia finds records that reveal Harriot was an orphan in 1811 on a ship bound for England from (then) Calcutta. Harriot's father was an Englishman, but the identity of her mother, who gave birth to her in a remote Indian village, is a mystery Olivia delights in solving.

Our Girl actress Michelle Keegan uncovers some exceptional women on her family tree. On her mother's side Michelle discovers that her Gibraltarian great-grandmother Leonor had to up sticks when all women and children and the elderly were evacuated from harm's way in Gibraltar to the apparent safety of London during the Second World War, a month before the start of the Blitz.Further back, Michelle discovers her great-great-grandmother Elizabeth Kirwan living in poverty in Manchester at the start of the 20th century. Michelle unearths a special connection to suffragette Emmeline Pankhurst and her great-great-grandmother's commitment to the cause that put her name on the electoral roll - voting for the very first time in 1918.

Pop star Lulu has always wanted to get to the bottom of a family mystery. She knows that her mum, the middle child of seven, was the only one to be given up by her birth parents and raised by another family, but she has no idea why. Lulu travels home to Glasgow, where she uncovers the real-life Romeo and Juliet story of her Catholic grandfather and Protestant grandmother's love affair across the city's strict sectarian divide. Digging deeper, she discovers some dark secrets about her grandfather's past which force her to reassess what she thought she knew about her mum's story.

Presenter Emma Willis grew up in Birmingham and loves the city and her fellow Brummies. She wants to find out how deep her roots are there. Further afield, an interfaith marriage in Ireland leads Emma down two very different paths. Violent events force her to confront disturbing truths about one ancestor, while the hard graft and determination of another lead Emma to draw parallels with her own life.

Citizen Khan star Adil Ray identifies as Brummie, British, Muslim, Pakistani and African - his mum came to England from newly independent Kenya with her family in 1967. Heading back to east Africa, Adil traces his mixed Asian and African ancestry across Kenya to Uganda. On the trail of rumours of a link to African royalty, Adil meets African relatives for the first time in the traditional kingdom of Buganda and is amazed to discover the truth about his lineage.

Sports presenter and broadcaster Clare Balding has always been curious about her maternal great-grandfather and the 'thing that has been sort of whispered in the family - could he have been gay?' Getting to the truth of the matter is a challenge when all the evidence comes from a time when homosexuality was illegal. Digging into her father's side of the family takes Clare to New Jersey and New York, where she uncovers an extraordinary dynasty and American roots stretching back generations.

Strictly judge Craig Revel Horwood reveals his softer side. Heading to his home town of Ballarat in Australia, Craig investigates what happened to his great-great-great-grandfather who risked everything in the Australian Gold Rush. A visit to his beloved 100-year-old grandmother sends Craig in pursuit of another maverick ancestor. Craig's great-great-grandfather Harry turns out to have been the life of the party and, better still, a fabulous dancer.

Actor Charles Dance has made his name playing aristocrats, including Tywin Lannister in HBO's Game of Thrones. But the upstairs world Charles inhabits on screen is nothing like his own background as his mum was an under house parlour maid. Charles wants to know if he comes from a long line of servants or if he can uncover some grander origins. He is also determined to learn about his dad, who died when Charles was four. Charles knows hardly anything about him, not even when he was born. Charles's search for information takes him to the other side of the world to meet close relatives he never knew he had.

As the 'last of the McKellens', Sir Ian admits to a degree of melancholy as he delves into his family history. But the results pay off richly for one of Britain's greatest actors and civil rights champions. Ian's journey uncovers a theatrical ancestor, a Victorian political activist and a link to an ancient Druidical landmark in the Lake District.

Celebrity genealogy series. Ricky Tomlinson is well-known for playing the archetypal Scouser and it turns out that his Liverpool roots run deep. Ricky discovers that he comes from generations of carters, who transported goods on Liverpool's docks when the city was the British Empire's busiest port. Ricky's rage and sorrow build as he discovers how dangerous conditions were for his ancestors, eerily echoing his own fight for workers' rights in the 1970s.

Singer Cheryl traces her roots and discovers a sea-faring ancestor and a family tragedy.

Wildlife presenter Liz Bonnin describes herself as 'a mongrel' - the result of her parents' lineages on the Caribbean islands of Trinidad and Martinique. In Trinidad, she goes in search of the first of her maternal ancestors to arrive on the island from India. Liz then heads to Martinique where her paternal ancestors are said to have owned plantation - and slaves. What she discovers is more complicated than she could have ever imagined.

Amanda Holden has always heard stories about a rumoured French ancestry on her mum's side, and her investigation uncovers an extraordinary Napoleonic-era cross-channel romance. On her dad's side, Amanda's grandfather's suicide has always loomed large. But when his story takes Amanda to France once again, she is moved to discover how he helped others through a harrowing tragedy.

EastEnders actor Danny Dyer hopes that he will 'freak a few people out' with his family history. Danny sets out to discover the history of his tough working-class family in the East End of London, but in the process he unearths an extraordinary lineage stretching back to the Norman conquest.

Actor Zachary Quinto travels to Italy and the Midwest and discovers the story of his great-grandfather, who held a political career in Pittsburgh. Zachary discovers his great-grandfather rose to prominence during a labor dispute at the turn of the last century and is stunned when he discovers a "cosmic" connection to his relative - his use of a phrase that would become synonymous with one of Zachary's screen roles. 

Actor and political activist Bradley Whitford meets with a genealogist to learn about his grandmother's heritage, discovering why his ancestors immigrated to the United States in 1846. His journey takes him to Washington, D.C., where he learns that his 2x great-grandfather, along with his siblings, fought in the Civil War. Bradley partners with a historian to learn if his ancestors survived the brutal warfare. 

Actor Matthew Morrison explores his American roots for the first time and is surprised to discover his family's ties to the Revolutionary War. He learns of the bold lengths his ancestor went through to protect his allegiances and the brutality he faced on the battlefield.

Actress Regina King investigates her maternal family tree and uncovers an ancestor who was a passionate civil rights activist in Alabama; a man who came out of slavery, endured horrific violence, but never stopped fighting for his people.

Actor Josh Duhamel travels to England to investigate the extraordinary life of his twelve times great-grandfather and uncovers an astonishing, dark twist of interrogation and torture that rocks his belief system to the core.

Actress Mandy Moore is shocked to discover ancestors who lived in Australia and travels far, determined to unlock the mystery of how they got there. Moore is touched by the courage of those who made the journey and the sacrifice of those who were left behind.

Actress Jean Smart uncovers the curious tale of an unconventional ancestor in colonial Massachusetts, who got her children entangled in her own thievery ring and later faced execution when she was accused of witchcraft.

Actress Molly Shannon heads to Ireland in search of her mother’s unknown family tree. She finds desperate ancestors forced to choose between their faith and survival; uncovers a family legacy of bravery; and meets Irish cousins for the first time.

Actress Hilary Duff uncovers the tale of an ancestor who bravely led an American colony to battle a notorious gang of pirates; she dives centuries-deep into her Scottish roots and is shocked to discover that she descends from a heroic medieval king.

Megan Mullally explores a shocking pattern of dysfunction in her father's line; she finds her two-times great grandmother was bravely defying societal norms in order to fight for her family's survival, while struggling to hang on to her own sanity.

Actress and activist Laverne Cox pieces together the inspiring life of her African American ancestor, who challenged societal norms and bravely pushed the boundaries just years after Emancipation.

Jon Cryer's journey takes him from America to Scotland as he uncovers the dramatic tale of an ancestor who survived a catastrophic battle, endured horrific conditions as a prisoner of war, and was forced to come to America as an indentured servant.

Motown legend and icon, Smokey Robinson tracks down a grandfather tangled in a swirl of controversy and connects to a relative's familiar struggle with oppression while coming face to face with the gruesome history he knew was inevitable.

Jessica Biel hunts for the truth behind family lore surrounding the death of an ancestor. She also makes two shocking discoveries that shake everything she knows about her heritage to the core.

Noah Wyle investigates his maternal family line, discovering an ancestor who was catapulted into one of America's biggest wars, and whose life spiraled out of control from remarkable success to a shocking and tragic end.

Jennifer Grey discovers much more about the grandfather she thought she knew as she uncovers how he survived adversity to become a beacon of his community; and discovers a great-grandmother whose devastating tragedy stopped her from making it to America.

Julie Bowen makes a shocking discovery that a beloved relative lead a nefarious organization that triggered a dark chapter of U.S. history; and uncovers another ancestor who risked everything to fight for the lives and freedom of African Americans.

Courteney Cox traces her maternal line back to ambitious and ruthless relatives who plotted and murdered their way to power in medieval times; and she's shocked to discover an ancestor who's one of European history's most famous characters

Lea Michele digs into her Jewish roots and finds a heartbreaking story about her great-grandmother in addition to a family reunited after being separated for decades.

Chris Noth discovers the suffering endured by his ancestors in America, and tracks a relative from Spain to Ireland who eventually became a war hero.

Molly Ringwald explores family lore of Swedish royalty, which uncovers her ancestors' harrowing lives and reveals women who suffered through unspeakable tragedies, and one brave immigrant who forever changed her family's fate.

Katey Sagal has an emotional and insightful meeting with her mother's friend and fellow USO performer. Katey also finds a surprising link to the Amish and uncovers the harrowing story of her relative's daring escape from attackers.

Tracing his patriotic roots, Scott Foley finds a relative who risked his life for one of America’s founding fathers, and an ancestor who suffered unspeakably during one of this nation’s darkest times.

Aisha Tyler's journey reveals an ancestor who, as a politician, struggled to keep his illegitimate son a secret. Against all odds, her 2x great-grandfather exemplifies bravery and determination during one of America's most tumultuous eras of racism.

Bryan Cranston's happy childhood shattered when his father abandoned the family when Bryan was just 11. Seeking answers, Bryan explores his paternal roots, finds a troubling pattern of desertion, a man of honor and an aunt he never even knew existed.

Alfre Woodard investigates the paternal side of her family and explores the origins of her surname.

JK Rowling sets off on a journey to uncover her maternal French roots. She stumbles upon a family mystery, and uncovers a harrowing tale of wartime heroism, then discovers the actions of a brave ancestor.

In the Season 7 premiere, Ginnifer Goodwin hopes to connect her father with the grandparents he never knew, and uncovers a dark side of her family tree that includes instability and drug addiction.

Actor Bill Paxton searches his paternal ancestry and uncovers a war hero from a historic battle who shaped politics in the past.

America Ferrera learns about her great-grandfather's pivotal role in Honduran history, and seeks a connection to the father she hardly knew.

Actor Tony Goldwyn researches his maternal ancestry and discovers a heritage of political activism along with a couple who proudly fought for abolition, women's rights and westward expansion.

Actor/Producer Sean Hayes searches for the cause of his estranged father's troubled past and uncovers a shocking trail of tragedy and crime that reaches back generations.

Actress Angie Harmon discovers an ancestor who gave up his freedom to come to America and fought for independence at a pivotal point in history.

Singer Josh Groban traces his ancestry to Germany and discovers a relative who was a deacon, music teacher and well-known astronomer.

Television personality Julie Chen uncovers a dramatic tale when she sets out for rural China to learn more about her maternal grandfather, who died long before she was born.

Actor/Producer Sean Hayes searches for the cause of his estranged father's troubled past and uncovers a shocking trail of tragedy and crime that reaches back generations.

Actress Angie Harmon discovers a daring ancestor who gave up his freedom to come to America, fought for his new country's independence, and risked everything at a pivotal point in America's history.

Josh Groban traces his ancestors' roots to Germany and discovers a relative who was a deacon, music teacher & well known astronomer. But Josh's ancestors' predictions of cataclysmic doom put him in the crosshairs of the church.

Minnie Driver unravels the deep family secrets her late father kept hidden. She discovers how the ravages of war nearly destroyed him, tracks down a long lost relative for the first time, and forms an unlikely bond with an ancestor she never knew existed.

Kelsey Grammer takes a trip into the past to explore his beloved grandmother’s family. He uncovers the story of a woman haunted by demons, and finds a connection to family who risked everything in one of the greatest migrations in American history.

Valerie Bertinelli goes on the hunt to unlock her family’s mysteries. She tracks down courageous ancestors who suffered through hardship and tragedy, and discovers a royal lineage dating back centuries that she never dreamed possible.

Actress Zooey Deschanel searches for rumored abolitionists in her father’s Ouaker family background. Her journey takes her around Pennsylvania where she uncovers, and follows, the story of a remarkable ancestor who sacrificed everything for her beliefs.

Media mogul Chelsea Handler confronts a deep family secret: her Grandfather’s rumored Nazi past. As she dives into her family’s struggle to survive in a desperate time, the details uncovered will finally confirm or deny his affiliation to the dark regime.

Actress Christina Applegate investigates her paternal grandmother - a stranger to her and her father. Uncovering dramatic details along the way, Christina gains insight into the life and hardships of the woman she and her father loved, but never knew.

Singer Kelly Clarkson explores her lineage and uncovers an ancestor deeply rooted in American history; she comes face-to-face with her 3x great grandfather's wartime bravery and sacrifice.

Actress Edie Falco's journey to learn more about her mother's side of the family leads her to Milwaukee and England.

Actress Rita Wilson travels to Greece and Bulgaria to learn more about her late father.

As actress Helen Hunt looks into her paternal family history, she uncovers missing information about her ancestors.

Former professional football player Jerome Bettis travels to Kentucky to learn about his mother's side of the family.

Country music star Reba McEntire heads to Raleigh, North Carolina as she explores her mother's ancestry.

Actor Blair Underwood utilizes a DNA test to dig deeper into his family's roots, where he discovers the secret of his family's origin.

Actress Marisa Tomei travels to Italy to uncover the truth about her great-granddather's death.

Actor Martin Sheen traces his family tree, hoping to find his ancestors shared his love of activism; Martin discovers a family secret from the 1700s.

Kim Cattrall travels to her native England to discover what happened to her grandfather, who abandoned his family to poverty when Kim's mother was only eight years old.

The search for her mother's roots takes Rosie to Ireland, and uncovers a new branch of the family.

The country music superstar uncovers his father's heritage among the Founding Fathers.

Vanessa Williams sets out on a journey to find out if her ancestors were also trailblazers.

Susan leads an emotionally charged search for her family roots. Starting with her estranged grandmother Anita who abandoned Susan's mother in early childhood, Susan's journey takes her all the way to Tuscany, Italy. Back in America, Susan discovers a surprising connection to her grandmother.

Brooke learns a tragic secret about her grandmother and then discovers a connection to royalty through her paternal roots.

On his journey to learn more about his paternal roots, Matthew Broderick discovers the heroic story of his grandfather during World War I and finds the final resting place of his great-great-grandfather who fought in the Civil War.

Lisa Kudrow journeys to the small Jewish town of Ilya where she discovers how her great-grandmother died in the Holocaust. Yet, Lisa finds hope when she uncovers a 60-year old family mystery.

Emmitt Smith is an NFL Hall of Fame running back who, since retirement, has devoted himself to business and giving back to the community. But recently, he decided to embark on a journey inward, tracing his family's past. It was a journey that took him beyond his wildest expectations, discovering not only his African roots, but his connections to slave owners in Virginia.

Sarah Jessica Parker is a celebrated icon in film and television as well as fashion, who recently served as a producer and reprised her Emmy Award-winning role as Carrie Bradshaw for the screen adaptation of the hit HBO series "Sex and the City." The actress took an emotional journey from coast to coast in search of her family's roots, crossing paths with the California Gold Rush and the Salem Witch Trials.