7/9 Actress Emma Kennedy chooses the life of the American comedienne Gracie Allen.
9/9 Conservative politician Baroness Warsi nominates a 13th-century Indian princess.
8/9 Baroness Shirley Williams discusses her mother, the feminist and pacifist Vera Brittain.
6/9 Astronomer Royal Sir Martin Rees champions the life of his hero, physicist Joseph Rotblat.
5/9 Downton Abbey actor Jim Carter champions the life and work of skiffle king Lonnie Donegan.
4/9 Brian Sewell on his love of 'Mad' King Ludwig II of Bavaria.
3/9 Steven Pinker joins Matthew Parris to discuss the life of the philosopher Thomas Hobbes.
2/9 Ludwig Wittgenstein, fascinating and misunderstood thinker, is chosen by Raymond Tallis.
1/9 Michael Sheen champions Philip K Dick who has had an influence on his production of Hamlet