Tom Mason

Character: Dr. Scott Dryden

Eric Braeden

Character: Leonard Nero

Melinda O. Fee

Character: Gwendolyn O'Brien

Fawne Harriman

Character: Joyce Cummings

Matthew Labyorteaux

Character: Timmy Garner

Ron Masak

Character: Harve Nelson

Caroline McWilliams

Character: Sue Garner

John Milford

Character: Eldon Gates

Max Gail

Character: Russ Garner

Ed Harris

Character: Chuck Polcheck

Hank Brandt

Character: Lt. Col. John Sebastian

Laurence Haddon

Character: Bert Fowler

Gerald McRaney

Character: Patrolman Ashley

Curtis Credel

Character: Frank Foley

Richard Lockmiller

Character: Patrolman Strong

Sean G. Griffin

Character: Dr. Conley

Christopher L. O'Brien

Character: Technician

Tom Lowell

Character: Intern

Nancy Priddy

Character: Teacher

Lorna Thayer

Character: Waitress

John Gilgreen

Character: Floyd

Laurie Beach

Character: Girl Student

Dirk Olthof

Character: Waiter

Tom Pittman

Character: Security Guard

Peter Schuck

Character: Orderly

William Kerwin

Character: Professor Reeve (uncredited)