Name	Known for
Lolly Adefope Katherine 'Kitty' Higham Katherine 'Kitty' Higham See fewer	Ghosts (2019)
Mathew Baynton Thomas Thorne Thomas Thorne See fewer	Wonka (2023)
Simon Farnaby Julian Fawcett MP Julian Fawcett MP See fewer	Paddington 2 (2017)
Martha Howe-Douglas Lady Fanny Button Lady Fanny Button See fewer	Doctors (2000)
Jim Howick Pat Butcher Pat Butcher See fewer	Hellboy (2004)
Laurence Rickard Robin / Sir Humphrey Bone Robin / Sir Humphrey Bone See fewer	Horrible Histories (2009)
Charlotte Ritchie Alison Cooper Alison Cooper See fewer	Wonka (2023)
Kiell Smith-Bynoe Mike Cooper Mike Cooper See fewer	Ghosts (2019)
Ben Willbond Captain Captain See fewer	Bill (I) (2015)
Katy Wix Mary Mary See fewer	Torchwood (2006)
Michael Fenton Stevens Tony Vanoli Tony Vanoli See fewer	Nighty Night (2004)
Eleanor Holzer Hazel Hazel See fewer	Ghosts (2019)
Rich Keeble Toby Toby See fewer	Rivals (2024)
Skye Leheup Biddy Biddy See fewer	Ghosts (2019)
Caroline Sheen Claire Claire See fewer	Les Misérables (2012)