Jeff Morrow

Dr. Leslie Gaskell

Barbara Lawrence

Vera Hunter

George O'Hanlon

Dr. Arnold Culver

John Emery

Dr. Hubbell Eliot

Morris Ankrum

Dr. Albert Stern

Jose Gonzales-Gonzales

Manuel Ramirez

John Halloran

Lab Central Security Guard

John Parrish

Gen. Perry

Robert Shayne

Air Force General

Richard Harrison

Pilot