Name	Known for
Eileen Atkins Mrs. Mailer Mrs. Mailer See fewer	Gosford Park (2001)
Dave King Mr. Mailer Mr. Mailer See fewer	The Long Good Friday (1980)
Alan Bennett Mr. Posner Mr. Posner See fewer	The Lady in the Van (2015)
Tim Haynes Tony Mailer Tony Mailer See fewer	Breaking Up (1986)
Rosemary Martin Marcia Marcia See fewer	Tess (1979)
Gabrielle Lloyd Clare Clare See fewer	The Great Train Robbery (1978)
Alexander Crockatt Jackson Jackson See fewer	Press Gang (1989)
Jerome Flynn John Mailer John Mailer See fewer	Game of Thrones (2011)
John Fortune Mr. Jackson Mr. Jackson See fewer	Match Point (2005)
Wendy Allnutt Mrs. Jackson Mrs. Jackson See fewer	When Eight Bells Toll (1971)
Nita Cavin Terry Terry See fewer	Breaking Up (1986)
Jimmy Demetriou Hughes Hughes See fewer	Who, Sir? Me, Sir? (1985)
Leo Kay Samuelson Samuelson See fewer	Breaking Up (1986)
Ashley Clark Schwaner Schwaner See fewer	Tom's Midnight Garden (1989)
Scott Ransome Heritage Heritage See fewer	The Ragged Child (1988)
Robert Jenkins Mauroleon Mauroleon See fewer	Breaking Up (1986)