Amanda Holden explores her French ancestry.

Amanda Holden explores her French ancestry.

Actor Danny Dyer sets out to discover the history of his family in the East End of London.

Actor Danny Dyer sets out to discover the history of his family in the East End of London.

Amanda Holden explores her French ancestry.

Liz Bonnin investigates her parents' lineages on the islands of Trinidad and Martinique.

Liz Bonnin investigates her parents' lineages on the islands of Trinidad and Martinique.

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

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

Amanda Holden explores her French ancestry.

Actor Danny Dyer sets out to discover the history of his family in the East End of London.

Amanda Holden explores her French ancestry.

Liz Bonnin investigates her parents' lineages on the islands of Trinidad and Martinique.

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

Liz Bonnin investigates her parents' lineages on the islands of Trinidad and Martinique.

Liz Bonnin investigates her parents' lineages on the islands of Trinidad and Martinique.

Ricky Tomlinson traces his roots and discovers that he comes from generations of carters.

Ricky Tomlinson traces his roots and discovers that he comes from generations of carters.

Sir Ian McKellen uncovers a theatrical ancestor and a Victorian political activist.

Sir Ian McKellen uncovers a theatrical ancestor and a Victorian political activist.

Greg Davies uncovers the deepest Welsh roots anyone could wish for.

Greg Davies uncovers the deepest Welsh roots anyone could wish for.

Warwick Davis uncovers the story of his three times great grandfather - a postman who lived a double life.

Warwick Davis uncovers the story of his three times great grandfather - a postman who lived a double life.

Actor Sunetra Sarker sets out to explore the Bengali heritage she ignored when she was growing up in Liverpool.

Actor Sunetra Sarker sets out to explore the Bengali heritage she ignored when she was growing up in Liverpool.

Ricky Tomlinson traces his roots and discovers that he comes from generations of carters.

Sir Ian McKellen uncovers a theatrical ancestor and a Victorian political activist.

Greg Davies uncovers the deepest Welsh roots anyone could wish for.

Warwick Davis uncovers the story of his three times great grandfather - a postman who lived a double life.