Richard Schiff

as Steve

as U.S. Secretary of State

as Toby Ziegler

as Dr. Emile Herschel

as Marty Lumetta

as Jeff Cohen

as Jacob Lipman

as The Usual

as Virginia Senator Thomas Cross

as Dr. Miles Driskoll

as Jonathan

as Dr. Ronald Green

as Director

as Don

as Jeweler

as Bruce

as Richard Zuckerman

as Mr. Allen

as Dr. Emil Hamilton

as Dimitris Vargas

as Henry Midwood

as Harold Gethers

as Tommy Molto

as Randall Pearson • 2 eps

as Roland Fancher • 3 eps

as Dr. Aaron Glassman • 126 eps

as Frank Linden • 1 eps

as Detective Zimmerfield • 8 eps

as Self • 1 eps

as Gordon stutz • 2 eps

as Self - Guest • 1 eps

as Dean Fairchild • 1 eps

as Brett Anderson • 25 eps

as Jon Gottlief • 12 eps

as Occam • 8 eps

as David Hertzberg • 32 eps

as Robert • 1 eps

as Marty Stein • 30 eps

as Doctor • 1 eps

as Charlie Knowles • 4 eps

as Ambassador • 1 eps

as Harrison 'Skip' Galweather • 9 eps

as King Leopold • 2 eps

as Dean Chafin • 1 eps

as Jack Fickler • 13 eps

as Patrick Portman • 3 eps

as Malachi Talmadge • 8 eps