Career: Playing mainly minor roles, Capaldi went on to feature in episodes of Minder, C.A.T.S. Eyes, The Lair of the White Worm, Rab C Nesbitt, Ruth Rendell Mysteries, Agatha Christie's Poirot and the miniseries Selling Hitler. He returned to the big screen when he wrote and starred in 1993's low-budget Soft Top Hard Shoulder. Guest starring roles followed in Prime Suspect 3, The Vicar of Dibley, Judge John Deed, My Family and Midsomer Murders. His profile raised significantly in 2005 when he began playing foul-mouthed spin doctor Malcolm Tucker in BBC comedy The Thick of It, a role that won him a Bafta. He also played Tucker in movie spin-off In the Loop. Always in-demand, his other TV credits include Skins, Torchwood: Children of Earth, The Nativity, Getting On and The Hour. He is currently playing the twelfth incarnation of the Time Lord in Doctor Who, a role he had long coveted.

Career: Mackie appeared as the front of house girl in the music comedy Svengali (2013). In 2014, she played Anne-Marie Frasier in Doctors. She has featured in a number of stage productions, including Obama-ology at Finborough theatre in London and in the National Theatre production of The Curious Incident of the Dog in the Night-Time. In 2017, she appeared in Doctor Who as the new assistant, Bill Potts.

Career: In 1994, Lucas appeared at the Edinburgh Festival, returning a year later with Walliams. The pair enjoyed a sell-out tour in 1997. Lucas also worked with Vic Reeves and Bob Mortimer on The Smell of Reeves and Mortimer, Shooting Stars, Randall and Hopkirk (Deceased) and Vic and Bob in Catterick. He reunited with Walliams for the spoof documentary series Rock Profiles, before creating the radio show Little Britain, which moved to TV in 2003; they also created Come Fly With Me in 2010. Lucas has enjoyed success on the stage in a number of production and popped up in Casanova, The Wind in the Willows, Krod Mandoon and the Flaming Sword of Fire, Tim Burton's Alice in Wonderland and Bridesmaids. He also fronts BBC One comedy show The Matt Lucas Awards.

Career: Suchet's first professional engagement was in theatre in Chester, followed by a stint at the RSC. His TV career took off in the late 1970s, thanks to roles in The Professionals and Tales of the Unexpected. Bigger parts on the small and big screens followed, including Greystoke: The Legend of Tarzan, Lord of the Apes, The Hunchback of Notre Dame, A Tale of Two Cities, Blott on the Landscape and Executive Decision. He began playing Poirot, the role that made him an international star, in 1989. Since then he's appeared in such acclaimed projects as The Way We Live Now, NCS Manhunt, Maxwell, Live from Baghdad, Henry VIII, The Bank Job and Going Postal, as well as numerous stage roles.