Who Do You Think You Are?

- Season 17

(2020)

The actress learns how her grandmother on her dad's side, Greta, acquired the middle name Verdun. On her mum's side, Jodie discovers how her great-great-grandfather worked his way up from child labourer in a coal mine to owning one.

Comedian David Walliams learns about his great-grandfather on his father's side, a tragic shell-shocked World War One veteran, and his great-great-grandfather on his mother's side, a blind organ grinder turned successful traveling showman.

Actress and screenwriter Ruth Jones returns to her Welsh seaside hometown to explore the fascinating family line of her great great great grandfather on her mother's side, a hardworking 19th century merchant ship captain from New Quay, and the highly successful and noble, yet cruelly ironic career of her grandfather on her father's side who worked as the secretary for the Medical Aid Society, a self-financed workers' healthcare organization which directly inspired the formation of the NHS only to eventually end up getting disbanded by the government as superfluous.

Actress Liz Carr learns about her orphaned grandfather on her mother's side, a naval WWI veteran involved in the Northern Patrol who joined the merchant navy after the war to see the world, and her paternal Irish great-great-great-grandfather, a revered tenant farmer involved in a Ribbonist plot to assassinate the local wealthy landlord, unsympathetic to his tenant farmers' plight, in rural Northern Ireland in the 1850s.