Curt Siodmak
Director
Herbert L. Strock
Director
Curt Siodmak
Screenplay
Ivan Tors
Screenplay
Jack R. Glass
Visual Effects
George Van Marter
Art Direction
Herbert L. Strock
Supervising Editor
Harry Redmond Jr.
Special Effects
Richard Dixon
Assistant Director
Maxwell O. Henry
Second Unit Director
Howard Fogetti
Sound
George Van Marter
Production Design
Blaine Sanford
Original Music Composer
George Van Marter
Associate Producer
Charles Van Enger
Director of Photography
Paul Beaver
Original Music Composer
Victor A. Gangelin
Set Decoration
Ivan Tors
Producer
Bill Naylor
Sound Effects
Richard Carlson
Dr. Jeffrey Stewart
King Donovan
Dr. Dan Forbes
Leo Britt
Dr. Benton
Jean Byron
Connie Stewart
Harry Ellerbe
Dr. Allard
Frank Gerstle
Col. Willis
John Vosper
Capt. Dyer
Byron Foulger
Mr. Simon
Leonard Mudie
Howard Denker
Kathleen Freeman
Nelly
William Benedict
Albert
John Zaremba
Chief Watson
Douglas Evans
Pilot
Strother Martin
Co-Pilot
Michael Fox
Dr. Serny
Watson Downs
Mayor
Lee Phelps
City Engineer
Roy Engel
Gen. Behan
John Dodsworth
Dr. Carthwright
Charles Williams
Cabbie
Michael Granger
Kenneth Smith
Jarma Lewis
Stewardess
Elizabeth Root
Joy
Juney Ellis
Spinster
