Phillip Darrow

Self

Doctor

Marshall

Dr. Innes

Mr. Marshall

Tauron

Hansen

Capt. Green

Governor's Aide (uncredited)

Lieutenant Dooley

Lt. Marr

Karl Plesser

Dr. Frazee

Lieutenant (jg) Hutchins

Messenger (uncredited)

Ron Shepherd

Detective Connors

Sir Isaac Newton (uncredited)

Cochrane

Fred

George Menefee (uncredited)

Lt. Goodsall

Lt. Weston Hathersall

Stage Cast Member (uncredited)

Michael Karns

Dr. Tony Drake

Dr. Steve Clark

Lt. Crosby

Ted Gordon

Tonio