Among the celebrities retracing their ancestors’ steps this season are Oscar winner Kate Winslet, Harry Potter star Daniel Radcliffe, music mogul Sharon Osbourne and Jack Whitehall who will be joined by his father Michael.

The father and son double-act will unravel their family’s link to the Newport Rising of 1839, while television personality Mark Wright will explore his Spanish and Jewish heritage with the discovery that his ancestor was tortured by the Spanish Inquisition.

Radcliffe will look back at the First World War through his family’s moving letters from the frontline, while Winslet will learn about her drummer-boy relative as she explores her Swedish lineage.

Other participants include James Bond star Naomie Harris, comedian Katherine Ryan and Have I Got News for You captain Paul Merton.

The eight celebrities will travel across the world from Spain and Sweden to Jamaica and Grenada.

"We’re delighted to have this incredible line-up of stars and to have captured these journeys of discovery as they explore their extraordinary family trees,” said Colette Flight, Executive Producer for Wall to Wall.

“Many of our celebrities’ ancestors were caught up in momentous historical events which we are covering for the first time in the series."

The new series of Who Do You Think You Are? airs later this summer on BBC One.