Holby City star Patsy Kensit is the first of eight celebrities to embark on an emotional personal journey to investigate her family history, as Who Do You Think You Are? returns to BBC One for a new series.

Patsy’s investigation begins with the colourful life of her late father, Jimmy Kensit, who was deeply involved with London’s most notorious gangsters of the Sixties: the Krays and the Richardsons.

Wanting to understand the roots of his criminality and to discover how far back the “family trade” goes, Patsy meets a criminologist who has unearthed a copy of her father’s criminal record – which reveals the full extent of his activities. She is then shocked to find documents in the National Archives that show her grandfather was also a prolific criminal.

As Patsy’s journey continues, she comes across a truly remarkable vicar who shines a new light on her family history and provides her with a fresh insight into her own faith and values.

The series continues with Boris Johnson, Jerry Springer, Esther Rantzen, David Suchet, Ainsley Harriott, Jodie Kidd and Laurence Llewelyn-Bowen.

Wednesday 13 August
9.00-10.00pm BBC ONE