Commander Wayne
Scott Brady
Dr. Rene Peron
Sheree North
Mike
Glenn Sipes
Ellis
Richard Niles
The Thing
Ron Burke
Dr. LaSatier
Gary Merrill
Dr. James
John Howard
Sandra Welles
Wende Wagner
Hugh Maddox
Mike Road
Tex
William Thourlby
Dr. Wilson
Biff Elliot
Skipper
Roy Barcroft
Ho Lee
James Hong
Director
Francis D. Lyon
Screenplay
Arthur C. Pierce
Producer
Earle Lyon
Set Decoration
Harry Reif
Editor
Robert S. Eisen
Director of Photography
Brick Marquard
Original Music Composer
Paul Dunlap
Art Direction
Paul Sylos
Executive Producer
Fred Jordan
Associate Producer
Wendell E. Niles Jr.
Casting
Kerwin Coughlin
Jasper Russel
Special Effects
Roger George
Creature Design
Richard Cassarino
Makeup Artist
Robert Dawn
Hairstylist
Linda Trainoff