George Pembroke

Policeman (uncredited)

Dr. William Saunders

Inspector Renard

Prof. Karl Schmidt

Clarence DeWitt

Town Constable

(uncredited)

Lowell King

Wendell

Chief of Civil Aeronautics Board (uncredited)

Mick Finnegan

Ernie Matthews

Owner

Sheriff Hinkle

C.W. Crawford

John Spencer

Cylus Cuttler

Lt. Williams

Dr. Nagel

Jed

Olaf Anderson

Ricard Gorman

Dr. Stephen Lang

Fingerprint Man (uncredited)

Headwaiter (uncredited)

(uncredited)