Rob Lowe
Sam Seaborn (22 eps)
Martin Sheen
President Josiah Bartlet (22 eps)
Allison Janney
C.J. Cregg (22 eps)
Richard Schiff
Toby Ziegler (22 eps)
Moira Kelly
Mandy Hampton (22 eps)
John Spencer
Leo McGarry (22 eps)
Bradley Whitford
Josh Lyman (22 eps)
Dulé Hill
Charlie Young (22 eps)
Janel Moloney
Donna Moss (22 eps)
Timothy Busfield
Danny Concannon (13 eps)
Renée Estevez
Nancy (10 eps)
Suzy Nakamura
Cathy (9 eps)
Elisabeth Moss
Zoey Bartlet (7 eps)
Allison Smith
Mallory O'Brien (5 eps)
Lisa Edelstein
Laurie (5 eps)
Tim Matheson
John Hoynes (5 eps)
John Amos
Percy Fitzwallace (5 eps)
Marlee Matlin
Joey Lucas (4 eps)
Jorja Fox
Agent Gina Toscano (4 eps)
Michael O'Neill
Ron Butterfield (4 eps)
Bill O'Brien
Kenny Thurman (4 eps)
Roger Rees
Lord John Marbury (2 eps)
Edward James Olmos
Roberto Mendoza (2 eps)
Rose Rollins
Suzanne (2 eps)
John de Lancie
Al Kiefer (2 eps)
Paul Provenza
Steve Onorato (2 eps)
Vaughn Armstrong
Sgt. McNamara (1 eps)
Karl Malden
Father Thomas Cavanaugh (1 eps)
James Hong
Chinese Ambassador (1 eps)
Kathleen York
Andrea Wyatt (1 eps)
Erick Avari
Pakistani ambassador (1 eps)
CCH Pounder
Deborah O'Leary (1 eps)
Clyde Kusatsu
Joe (1 eps)
Robert David Hall
David Nessler (1 eps)
Iqbal Theba
Indian ambassador (1 eps)
Bart Braverman
Shapiro (1 eps)
Bob Balaban
Ted Marcus (1 eps)
Hunter von Leer
Officer (1 eps)
Wendell Wright
Economist #1 (1 eps)
J. August Richards
Bill (1 eps)
John Bedford Lloyd
Lloyd Russell (1 eps)
Jillian Armenante
Leela (1 eps)
Jay Underwood
Congressman Christopher Wick (1 eps)
Mark Blum
Rep. Katzenmoyer (1 eps)
Sara Botsford
Jenny McGarry (1 eps)
Lance Reddick
D.C. Police Officer (1 eps)
Paul Austin
George Huffnagle (1 eps)
John Diehl
Claypool (1 eps)
Dakin Matthews
Simon Blye (1 eps)
Liza Weil
Karen Larson (1 eps)
Merrin Dungey
Daisy (1 eps)
Ruben Santiago-Hudson
Morris Tolliver (1 eps)
Sam Lloyd
Bob (1 eps)
Nick Offerman
Jerry (1 eps)
Guy Boyd
Stanley (1 eps)
Juwan Howard
Mr. Grant (1 eps)
Nicholas Cascone
Loomis (1 eps)
Al Fann
Rep. Joe Willis (1 eps)
Kenneth Tigar
Congressman Gladman (1 eps)
David Rasche
Carl Everett (1 eps)
William Lucking
Bobby Russo (1 eps)
John Kapelos
Seymour Little (1 eps)
Sal Landi
Chafey (1 eps)
Ken Howard
Judge Peyton Cabot Harrison III (1 eps)
Mason Adams
Justice Joseph Crouch (1 eps)
Holmes Osborne
Congressman Peter Lillienfield (1 eps)
Raynor Scheine
Homeless Man (1 eps)
Felton Perry
Jerry (1 eps)
David Proval
Rabbi Glassman (1 eps)
Noah Emmerich
Bobby Zane (1 eps)
Jay Leno
Jay Leno (1 eps)
David Hasselhoff
David Hasselhoff (1 eps)
Reiko Aylesworth
Janine (1 eps)
Lawrence Pressman
Ken Cochran (1 eps)
Thom Gossom Jr.
Ted Mitchell (1 eps)
Austin Pendleton
Barry Haskell (1 eps)
David Huddleston
Max Lobell (1 eps)
Annie Corley
Mary Marsh (1 eps)
Marlene Warfield
Maid (1 eps)
Marc Grapey
Billy (1 eps)
Chris Hogan
Mark Miller (1 eps)
Veronica Webb
Veronica Webb (1 eps)
Amy Aquino
Becky Reeseman (1 eps)
Richard Fancy
Congressman (1 eps)
Brandon Hammond
Jeffrey Morgan (1 eps)
Nadia Dajani
Lilli Mays (1 eps)
Rolonda Watts
Melissa (1 eps)
Lindsay Sloane
Stacy (1 eps)
F. William Parker
Al Caldwell (1 eps)
Carl Lumbly
Jeff Breckenridge (1 eps)
Bruce Weitz
Senate Majority Leader (1 eps)
Aaron Lustig
Senate Aide (1 eps)
David Brisbin
Ken (1 eps)
Richard Penn
Blakely (1 eps)
James DuMont
Major Thompson (1 eps)
Ted Marcoux
Major Tate (1 eps)
Andy Buckley
Mike Satchel (1 eps)
Thom Barry
Mark Richardson (1 eps)
Harry Groener
Roger Tribbey (1 eps)
Bill Stevenson
Jaworski (1 eps)
