Jake

Jake

Ron Cooper (5 episodes)

Colin Blair

Jack Kent Cooke (1 episode)

Travis Laughton

Mr. Donaghy

National Security Advisor (2 episodes)

Jerry

Harry McGyver (1 episode)

Detective Winslow (8 episodes)

Mr. Deavers (1 episode)

Harris Waylon Greer (1 episode)

Director Jack Walters (3 episodes)

Ken Stanitzke

Harry Eshelman (6 episodes)

John Redmond (2 episodes)

Sam

Frank Rigby (10 episodes)

Ben's Dad

Walters

Professor Aaron Wilkins (5 episodes)

Frank

Chris Flowers

Dr. Helzer

Wallace (1 episode)

Charles Berkeley

Hugh Akston

Dr. Stuart

Darren Hoffman (1 episode)

Dr. Calvin Byrd (2 episodes)

Philip Gifford (1 episode)

Alan Ascher

Calvin Beckett

Wally Wandell (3 episodes)

Reverend Joseph Ezra (1 episode)

Trooper Finnerty

Dr. Stan Howard (1 episode)

Barry Grissom

Father Lloyd Tierney (1 episode)

Reverend Bill Collier

Self (archive footage) (1 episode)

Detective Griffin

(2 episodes)

Agent Tim Hecht (1 episode)

Fletcher Stone (1 episode)

(1 episode)

Mike Harris

Daniel Easton (1 episode)

Richie

Ronald McCain (1 episode)

Al Marcosi (1 episode)

Eugene O'Hanigan (2 episodes)

Will Sawyer (1 episode)

Michael McShale (1 episode)

Eli Rush (1 episode)

Dave Baker

Cally Lonegan / Professor Donald Lonegan (1 episode)

Duane Larsen

Dennis

Wayne

Merrida Coxwell

Garrett James

Kevin Hunter (18 episodes)

Ken

Eddie Wexler (1 episode)

Adult Tom

Journalist

Jack Bolder

Michael

Fred (23 episodes)

Ron Steffey (6 episodes)

Frank Reade

(17 episodes)

Jack Hays

Walt Colton

Mike Medwicki

Dan

Sgt. Mike Fitzgerald

Dr. Cassius William 'Bill' Sander

Billy

Jake Bateman

Richard Shepard (1 episode)

Art Toomey (1 episode)

Darryl Palmer

Michael Rangeloff

Nathaniel Williamson

Danny "Joshua" Stetson

Lt. Walter Cohen (2 episodes)

Danny Noonan

Ben Meechum

Harris

Worthy Pettinger (2 episodes)

Horseman

Terry Long

Chad Marshall (2 episodes)

Josh Birdwell

Corporal Travis (2 episodes)