Who Do You Think You Are?

Actress and national treasure Julie Walters follows her roots back to rural Ireland. On the trail of her great grandfather, Anthony Clarke, Julie's journey takes her to County Mayo where she discovers Anthonywas at the centre of a revolutionary movement fighting for land rights.

Julie unearths a tale of poverty and tyranny - and ultimately triumph, at a tumultuous time in Irish history.

Actor Brian Blessed has always loved his unusual name - but has no idea where his Blessed ancestors came from.

Born in Yorkshire he'd always assumed his family were northerners, but digging deeper Brian discovers that his roots lie down south. Here he uncovers the story of his great great grandfather Jabez Blessed - a tale of hardship, struggle and survival worthy of Oliver Twist.

New Tricks star Tamzin Outhwaite has always been intrigued by her Italian ancestry. Although she remembers her grandfather Remo, she knows very little about his family.

Tamzin's journey into her Italian past uncovers the rags-to-riches tale of her great-grandfather Adelmo and takes her on an unexpected trip - to a prisoner of war camp.

Brendan O'Carroll ditches his alter ego Mrs Brown to turn detective, as he attempts to track down the men who murdered his grandfather at the height of the Irish War of Independence. Brendan never knew hisgrandfather, who was shot dead before he was born, and the only clues he has to go on are from a newspaper article of the time.

Actress Sheridan Smith has grown up surrounded by a musical family, singing with her country and western duo parents since she was a child. Sheridan is keen to know where her musical talent comes from and is soon hot on the trail of her great-great-grandfather Benjamin Doubleday. She's shocked to discover the dramatic fall in fortunes of this self-styled musical impresario and famous banjoist.

Bake Off star Mary Berry, still going strong at 79, believes she inherits her energy and drive from her father and sets off on a journey to find out more about his family. Along the way she discovers illegitimacy, bankruptcy, and even more astonishingly, a baker.

Actor Martin Shaw never knew his grandfather, Edwin Shaw, who walked out on his family when Martin's father was just a boy. Martin sets off to find out what happened to this elusive character with his only clue a photograph of Edwin as a young man. From a shotgun wedding to the Birmingham Blitz, Martin tries to sort fact from family fiction to discover who Edwin was.

Presenter and DJ Reggie Yates grew up knowing very little about his father's side of the family. Reggie sets out on the trail of his grandfather, Harry Philip Yates. His journey takes him to Ghana, where he unravels a complex family history where Ghanaian culture and British colonialism collide.

Celebrity genealogy series. Scottish comedian and actor Billy Connolly has always considered himself Scottish through and through, but as he travels to India in the footsteps of his army ancestors, he makes anextraordinary discovery. Not only was his great-great-great-grandfather present at a pivotal point in Indian history, through him Billy's connection to India runs deeper than he had ever imagined.

Twiggy grew up in a close-knit family in London, but her mother told her almost nothing about her relations, not even her grandmother's name. As Twiggy sets off to investigate her mum's family, she discovers that times were tough for them in Victorian London and they didn't always stay on the straight and narrow.