Beyond the Time Barrier

Robert Clarke

Major William Allison

Darlene Tompkins

Princess Trirene

Vladimir Sokoloff

The Supreme

Boyd 'Red' Morgan

Captain

Stephen Bekassy

Gen. Karl Kruse

John van Dreelen

Dr. Bourman

Arianne Ulmer

Capt. Markova

Ken Knox

Col. Marty Martin

Neil Fletcher

Air Force Chief

Jack Herman

Dr. Richman

William Shephard

Gen. York

James 'Ike' Altgens

Secretary Lloyd Patterson

John Loughney

Gen. Lamont

Russ Marker

Col. Curtis

Tom Ravick

Mutant

Don Flournoy

Mutant

Arthur C. Pierce

Mutant Escaping from Jail (uncredited)

Malcolm Thompson

Guard (uncredited)