Ronald Reagan

Professor Peter Boyd

Diana Lynn

Jane

Walter Slezak

Professor Hans Neumann

Lucille Barkley

Valerie Tillinghast

Jesse White

Babcock

Herbert Heyes

Dean Tillinghast

Herb Vigran

Lt. Daggett

Harry Tyler

Knucksy

Edward Clark

Fosdick (as Ed Clark)

Edward Gargan

Policeman (as Ed Gargan)

Joel Friedkin

Mr. De Witt

Brad Browne

Chief of Police

Elizabeth Flournoy

Miss Swithen (as Elizabeth Flourney)

Howard Banks

Policeman

Perc Launders

Fireman

Frederick de Cordova