- Hugh Bonneville
- Â Ian Fletcher 16 episodes, 2014-2024
- Monica Dolan
- Â Tracey Pritchard 16 episodes, 2014-2024
- Jessica Hynes
- Â Siobhan Sharpe 15 episodes, 2014-2024
- Sarah Parish
- Â Anna Rampton 15 episodes, 2014-2020
- Hugh Skinner
- Â Will Humphries 15 episodes, 2014-2024
- Jason Watkins
- Â Simon Harwood 15 episodes, 2014-2020
- David Tennant
- Â Narrator 15 episodes, 2014-2024
- Nina Sosanya
- Â Lucy Freeman 14 episodes, 2014-2017
- Jonathan Bailey
- Â Jack Patterson 14 episodes, 2014-2017
- Ophelia Lovibond
- Â Izzy Gould 14 episodes, 2014-2017
- David Westhead
- Â Neil Reid 14 episodes, 2014-2020
- Ivan Gonzalez
- Â Jerry Guildencrantz 13 episodes, 2014-2017
- Rufus Jones
- Â David Wilkes 13 episodes, 2014-2017
- Max Olesker
- Â Ben Rosenstern 13 episodes, 2014-2017
- Daniel Ings
- Â Matt Taverner 8 episodes, 2014-2017
- Alex Beckett
- Â Barney Lumsden 7 episodes, 2014-2017
- Sara Pascoe
- Â Coco Lomax 5 episodes, 2014-2017
- Joel Fry
- Â Karl Marx 5 episodes, 2014-2017
- Chris Cowlin
- Â BBC Employee / ... 1 episode, 2014-2017
- Tom Basden
- Â Dan Shepherd 3 episodes, 2014-2015
- Pooky Quesnel
- Â Fiona Craig 3 episodes, 2017
- Emma Sidi
- Â Zoe 3 episodes, 2017
- Carol Vorderman
- Â Carol Vorderman 2 episodes, 2014
- Laurence Howarth
- Â Adam Brady 2 episodes, 2014-2017
- Ben Batt
- Â Ryan Chelford 2 episodes, 2017
- Alan Yentob
- Â Alan Yentob 2 episodes, 2014-2015
- Derek Riddell
- Â Clive Cook 2 episodes, 2017
- Will Sharpe
- Â Michael Chung 2 episodes, 2017
- Sophie Raworth
- Â Sohpie Raworth / ... 2 episodes, 2015-2017
- Lenny Henry
- Â Lenny Henry 2 episodes, 2017-2024
- Hugh Grant
- Â Hugh Grant 2 episodes, 2017
- Kae Alexander
- Â Receptionist 2 episodes, 2017
- Rose Matafeo
- Â Chloe 2 episodes, 2017
- Priyanga Burford
- Â Faiza Rajah 2 episodes, 2017
- Clare Balding
- Â Clare Balding 1 episode, 2014
- Olivia Colman
- Â Sally Owen 1 episode, 2014
- Jenni Murray
- Â Jenni Murray 1 episode, 2014
- Matt Addis
- Â Journalist 1 episode, 2014
- Nyasha Hatendi
- Â Reporter 1 episode, 2014
- Emil Lager
- Â Waiter 1 episode, 2014
- Amani Johara
- Â Indira Sahni 1 episode, 2014
- Elizabeth Berrington
- Â Elaine Pearson 1 episode, 2014
- Simon Greenall
- Â Nigel Trescott 1 episode, 2014
- Nadia Kamil
- Â Woman's Hour B.A. 1 episode, 2014
- Justin Edwards
- Â Mark Stephenson 1 episode, 2014
- Karen Ascoe
- Â Sally Wingate 1 episode, 2014
- Adrian Der Gregorian
- Â Office Guy 1 episode, 2014
- Kåre Conradi
- Â Jens Smit 1 episode, 2017
- Salman Rushdie
- Â Salman Rushdie 1 episode, 2014
- Maggie Service
- Â Hotel Receptionist 1 episode, 2017
- Gary Lineker
- Â Gary Lineker 1 episode, 2017
- Alan Shearer
- Â Alan Shearer 1 episode, 2017
- Shelley Conn
- Â Azia Zamani 1 episode, 2015
- Samuel West
- Â Richard Cartwright 1 episode, 2015
- Amit Shah
- Â Sadiq Iqbal 1 episode, 2015
- Sarah Hadland
- Â Pilates Instructor 1 episode, 2015
- Asim Chaudhry
- Â Security Guard 1 1 episode, 2015
- Andrew Brooke
- Â Dave Green 1 episode, 2015
- Clare Wille
- Â Camilla 1 episode, 2015
- Marcus Onilude
- Â Security Guard 2 1 episode, 2015
- Simon Bubb
- Â Benedict Cartwright 1 episode, 2015
- Dan Mersh
- Â Man in Broadcasting House 1 episode, 2015
- Mary Beard
- Â Mary Beard 1 episode, 2015
- Sophie Fletcher
- Â Alice 1 episode, 2015
- Evan Davis
- Â Evan Davis 1 episode, 2015
- Raquel Cassidy
- Â Tasmin Howard 1 episode, 2017
- Claudia Winkleman
- Â Claudia Winkleman 1 episode, 2017
- Dominic Mafham
- Â Tony Dixon 1 episode, 2017
- Brian Cox
- Â Brian Cox 1 episode, 2017
- Laura Checkley
- Â Paramedic 1 episode, 2017
- Shauna Shim
- Â Donna Fredericks 1 episode, 2017
- Jeffery Kissoon
- Â Ray Fredericks 1 episode, 2017
- Emily Lloyd-Saini
- Â Fiona's P.A. 1 episode, 2017
- Ben Ashenden
- Â Assistant Floor Manager 1 episode, 2017
- Louise Minchin
- Â Louise Minchin 1 episode, 2017
- Jeremy Paxman
- Â Jeremy Paxman 1 episode, 2017
- Dan Walker
- Â Dan Walker 1 episode, 2017
- Arthur Wilde
- Â Office Worker 1 episode, 2017
- Tony Hall
- Â Tony Hall 1 episode, 2017
- Tom Davis
- Â Tom Davis 1 episode, 2024
- Lenny Rush
- Â Lenny Rush 1 episode, 2024
- Romesh Ranganathan
- Â Romesh Ranganathan 1 episode, 2024
- Lorraine Kelly
- Â Lorraine Kelly 1 episode, 2024
- Chesney Hawkes
- Â Chesney Hawkes 1 episode, 2024
- Richard Madeley
- Â Richard Madeley 1 episode, 2024
- Mohamed Farah
- Â Mo Farah 1 episode, 2024
- Rustie Lee
- Â Rustie Lee 1 episode, 2024
- Wynne Evans
- Â Wynne Evans 1 episode, 2024
- Hannah Blamires
- Â BBC Employee (uncredited) 4 episodes, 2014-2015
- Graham Curry
- Â BBC Staff (uncredited) 3 episodes, 2014
- Ross Carter
- Â BBC Executive (uncredited) 1 episode, 2017
- Andy Holland
- Â BBC Employee (uncredited) 1 episode, 2017
