Name	Known for
Rebecca Front The Therapist The Therapist See fewer	The Thick of It (2005)
Sharon Horgan Tammy Wynette / Unity Mitford Tammy Wynette / Unity Mitford See fewer	Catastrophe (2015)
Samantha Spiro Betty / Jessica Mitford Betty / Jessica Mitford See fewer	Me Before You (2016)
Frances Barber Elizabeth I Elizabeth I See fewer	Goal! The Dream Begins (2005)
Katy Brand Medusa Medusa See fewer	Good Luck to You, Leo Grande (2022)
Kathy Burke The Queen Mother The Queen Mother See fewer	Tinker Tailor Soldier Spy (2011)
Seb Cardinal Wilson / Janis Joplin Wilson / Janis Joplin See fewer	Spartan (2004)
Dustin Demri-Burns Keppel Keppel See fewer	Slow Horses (2022)
Sophie Ellis-Bextor Nancy Mitford Nancy Mitford See fewer	Osmosis Jones (2001)
Michelle Gomez Mary, Queen of Scots / Mrs Thatcher Mary, Queen of Scots / Mrs Thatcher See fewer	Green Wing (2004)
Selina Griffiths Marie Antoinette Marie Antoinette See fewer	The Smoking Room (2004)
Doon Mackichan Catherine Howard Catherine Howard See fewer	The Day Today (1994)
Morgana Robinson Anna-Nicole Smith / Venus Anna-Nicole Smith / Venus See fewer	The Witches (2020)
Reece Shearsmith Princess Margaret Princess Margaret See fewer	The League of Gentlemen (1999)