Monsignor Frank (1 episode)

Dr. Pankowitz (8 episodes)

Dr. Bill Rauch

William 'Bill' Collins XII

Scott

Bill Hoffman

Michael Conrad

Larry Berman

Karl Muller (31 episodes)

Ambassador Arlen Maxwell (1 episode)

Alden Schmidt (20 episodes)

Jefferson Monroe

Jack

Hunter Black (1 episode)

Cyrus Marshall

Dean

Percy Petunia

Jim Marwood (8 episodes)

Barry O'Connor

Eichelberger

Agent X

Daniel Levine

Marshall

Calvin Hartley (10 episodes)

Joe Delaney (1 episode)

Linton Barwick

Alan

Thomas Sparrow

Self / CIA Officer (archive footage)

CIA Officer

Doug

Senator

(1 episode)

Donald Freeman Greene

President Ballentine

(1 episode)

Gen. Perkins

Dr. Martin Shutte

Tim Valentine (1 episode)

Warren Ward

Nick Patterson (1 episode)

Norton Andrews (1 episode)

Lawyer (1 episode)

Mr. McNerney

Doc Croc (1 episode)

Taylor Abbott

Elliot Chevron

Evan (2 episodes)

President Whitman (5 episodes)

Stig

Robert Sinclair

Carl Everett (1 episode)

(1 episode)

Richard 'Richie' Wickham

Denny

Jack Stanford

Michael Tenzer (1 episode)

Derek Early

Patrick Kinsley (1 episode)

Alan

Amy's Dad

Emmett Davis

Peter Thomas (13 episodes)

Payne

Phillip, Patient #4

Ben Landry

Baron Von Dillweed (voice) (1 episode)

Brother Nahum (4 episodes)

M.C. at Luau

Jeff

Alfred Raine

John Ramsey (1 episode)

Chaz Frederick

"Grave Squad" Lawyer

Baker

Ted Forstmann

Jack Trenton (1 episode)

Jack Trenton (46 episodes)

David McCoy (2 episodes)

Dr. Paul Kirkwood / Dennis

Hal Devlin

Sheriff Kyle Lauder

Buddy Wheeler

Sloane Vaughn

Detective Mike Parnell LBPD

Steve Fisher

Cal McGinnis

Donald Summer

Buckley

Sledge Hammer (41 episodes)

(1 episode)

Dan

Surf (1 episode)

Sam Rawlings

(1 episode)

Jeff

Donald Catton

David McKeeson

Rev Howard Woode

Michael Taylor

Eddie White

Stopwatch Producer

(1 episode)

David Ritchie

Television Actor #3

Jack Collins

Man who says, "Hello" (uncredited)

Smitty (1 episode)