Name	Known for
Cynthia Gibb Lauren Ashborne / The Girl Lauren Ashborne / The Girl See fewer	Fame (1982)
James Calvert Gus Lloyd / The Cold-Steel Kid Gus Lloyd / The Cold-Steel Kid See fewer	House (1985)
Stephen Kay Peter Rucker (as Stephen T. Kay) Peter Rucker (as Stephen T. Kay) See fewer	Get Carter (2000)
Christopher Lloyd Sebastian Jackal / Jordan Kenneth Lloyd Sebastian Jackal / Jordan Kenneth Lloyd See fewer	Back to the Future (1985)
Jerry Stiller Phil Cullen Phil Cullen See fewer	The Heartbreak Kid (2007)
Marjorie Monaghan Sharon Sharon See fewer	Regarding Henry (1991)
Christopher Neame Dr. Kramer Dr. Kramer See fewer	Licence to Kill (1989)
Stuart Pankin Dr. Jerry Abernathy Dr. Jerry Abernathy See fewer	Congo (1995)
Jack Betts Gene Murdock Gene Murdock See fewer	Spider-Man (2002)
Pat Crawford Brown Woman Woman See fewer	The Rocketeer (1991)
Trevor Einhorn Billy Billy See fewer	Mad Men (2007)
J. Michael Esposito David Green (as Michael Esposito) David Green (as Michael Esposito) See fewer	Tender Loving Care (1996)
Carole Goldman Woman #2 Woman #2 See fewer	ER (1994)
Helen Greenberg Ronnie Goldberg Ronnie Goldberg See fewer	Dharma & Greg (1997)
Sandy Hackett Mr. Spencer Mr. Spencer See fewer	Hamburger: The Motion Picture (1986)
Carolyn Lowery Billy's Mother Billy's Mother See fewer	Candyman (1992)
Paul Rosenberg Billy's Father Billy's Father See fewer	Go (1999)
Matt Vasko Private Davis Private Davis See fewer	General Hospital (1963)