Professor Peter Boyd
Ronald Reagan
Jane
Diana Lynn
Mr. De Witt
Joel Friedkin
Chief of Police
Brad Browne
Miss Swithen (as Elizabeth Flourney)
Elizabeth Flournoy
Policeman
Howard Banks
Fireman
Perc Launders
Student
Brad Johnson
Student (as Bill Mauch)
Billy Mauch
Telephone Operator
Ann Tyrrell
Bonzo
Peggy
Professor Hans Neumann
Walter Slezak
Valerie Tillinghast
Lucille Barkley
Babcock
Jesse White
Dean Tillinghast
Herbert Heyes
Lt. Daggett
Herb Vigran
Knucksy
Harry Tyler
Fosdick (as Ed Clark)
Edward Clark
Policeman (as Ed Gargan)
Edward Gargan
Director
Frederick de Cordova
Original Music Composer
Frank Skinner
Makeup Artist
Bud Westmore
Set Decoration
Russell A. Gausman
Screenplay
Lou Breslow
Val Burton
Story
Ted Berkman
Director of Photography
Carl E. Guthrie
Raphael Blau
Sound
Leslie I. Carey
Art Direction
Eric Orbom
Joe Lapis
Hairstylist
Joan St. Oegger
Ruby R. Levitt
Bernard Herzbrun
Costume Design
Rosemary Odell
Producer
Michael Kraike