Name	Known for
Rob Lowe Sam Seaborn Sam Seaborn See fewer	St. Elmo's Fire (1985)
Moira Kelly Mandy Hampton Mandy Hampton See fewer	One Tree Hill (2003)
Dulé Hill Charlie Young Charlie Young See fewer	Psych (2006)
Allison Janney C.J. Cregg C.J. Cregg See fewer	The Help (2011)
Richard Schiff Toby Ziegler Toby Ziegler See fewer	Man of Steel (2013)
John Spencer Leo McGarry Leo McGarry See fewer	The West Wing (1999)
Bradley Whitford Josh Lyman Josh Lyman See fewer	Get Out (I) (2017)
Martin Sheen President Josiah Bartlet President Josiah Bartlet See fewer	The Departed (2006)
Marlee Matlin Joey Lucas Joey Lucas See fewer	CODA (2021)
Timothy Busfield Danny Concannon Danny Concannon See fewer	The West Wing (1999)
John de Lancie Al Kiefer Al Kiefer See fewer	Crank: High Voltage (2009)
Janel Moloney Donna Moss Donna Moss See fewer	The West Wing (1999)
Suzy Nakamura Cathy Cathy See fewer	Curb Your Enthusiasm (2000)
Bruce Weitz Senate Majority Leader Senate Majority Leader See fewer	Hill Street Blues (1981)
Kathleen York Andrea Wyatt Andrea Wyatt See fewer	In the Dark (2019)
Bill O'Brien Kenny Thurman Kenny Thurman See fewer	The West Wing (1999)
Paul Provenza Steve Onorato Steve Onorato See fewer	The Aristocrats (2005)
Kathryn Joosten Dolores Landingham Dolores Landingham See fewer	Wedding Crashers (2005)
NiCole Robinson Margaret Hooper Margaret Hooper See fewer	Dragon Wars: D-War (2007)
Chris Conner Jack Jack See fewer	Horizon: An American Saga - Chapter 2 (2024)
Melissa Fitzgerald Carol Carol See fewer	Frequency (2000)
Kris Murphy Katie Katie See fewer	The West Wing (1999)
Kim Webster Ginger Ginger See fewer	The West Wing (1999)
Devika Parikh Bonnie Bonnie See fewer	Aquaman (2018)
Charles Noland Steve Steve See fewer	Wayne's World (1992)
Mindy Seeger Chris Chris See fewer	Junior (1994)
J.P. Stevenson Jonathan Jonathan See fewer	The West Wing (1999)
Diana Morgan Jesse Jesse See fewer	Titanic (1997)
Michael Luckerman Aide #1 Aide #1 See fewer	Martin (1992)
Paul L. Ehrmann Aide #2 (as Paul Ehrmann) Aide #2 (as Paul Ehrmann) See fewer	Death Race 2000 (1975)
Diana Nadeau Aide Aide See fewer	The Jeff Foxworthy Show (1995)
Karolyn Nishioka Waitress Waitress See fewer	The West Wing (1999)
Mark Weiler Onorato's Assistant (uncredited) Onorato's Assistant (uncredited) See fewer	Terminator: Dark Fate (2019)