Henry O'Neill

~ as ~

Dr. Everett Colner

Morris Ankrum

~ as ~

Lt. Pat McKay

Arthur Space

~ as ~

Burton Caighn Jr.

Paul Guilfoyle

~ as ~

Dudley Badger

Dorothy Adams

~ as ~

Mrs. Mary Abbott (uncredited)

Paul Langton

~ as ~

Peter Selkin (uncredited)

William Tannen

~ as ~

McKay's Assistant (uncredited)

Charles Thompson

~ as ~

David Ranklin (uncredited)

John Vosper

~ as ~

Dr. Elton Parkson (uncredited)

Jacqueline White

~ as ~

Jean Smith (uncredited)