Name	Known for
David Mitchell Stephen Stephen See fewer	That Mitchell and Webb Look (2006)
Robert Webb Andrew Andrew See fewer	That Mitchell and Webb Look (2006)
Louise Brealey Cass Cass See fewer	Brian and Charles (2022)
Penny Downie Ellen Ellen See fewer	Invictus (2009)
Jessica Gunning Jan Jan See fewer	Pride (I) (2014)
John Macmillan Julian Julian See fewer	House of the Dragon (2022)
Oliver Maltman Mike Mike See fewer	Another Year (2010)
Geoffrey McGivern Geoff (as Geoff McGivern) Geoff (as Geoff McGivern) See fewer	Little Dorrit (2008)
Olivia Poulet Alison Alison See fewer	In the Loop (2009)
Jumanne Bailey Cath Cath See fewer	Back (2017)
Anna Leong Brophy Bryony Bryony See fewer	Shadow and Bone (2021)
Tim Downie Lee Lee See fewer	Outlander (2014)
Donavan Imber Keith Keith See fewer	Bloodyminded (2018)
Roisin O'Mahony Shoe Shop Assistant (as Róisín O'Mahony) Shoe Shop Assistant (as Róisín O'Mahony) See fewer	Mild Thing (2017)
Robert Purdy Barman Barman See fewer	Footballers' Wives (2002)
Oliver Wellington Robbie Robbie See fewer	Rosie Molloy Gives Up Everything (2022)
Scherrikar Bell Nurse (uncredited) Nurse (uncredited) See fewer	The Interceptor (2015)
John Crawshaw Customer (uncredited) Customer (uncredited) See fewer	Apple Tree Yard (2017)
Christian Di Sciullo Construction Worker (uncredited) Construction Worker (uncredited) See fewer	The Swimmers (2022)