Arthur Franz
Donald Blake
Cast (15)
Joanna Moore
Madeline Howard
Judson Pratt
Lt. Mike Stevens
Troy Donahue
Jimmy Flanders
Nancy Walters
Sylvia Lockwood
Helen Westcott
Nurse Molly Riordan
Ross Elliott
Sgt. Eddie Daniels
Alexander Lockwood
Prof. Gilbert Howard
Whit Bissell
Dr. Oliver Cole
Richard H. Cutting
Tom Edwards - Forest Ranger
Hank Patterson
Townsend - Night Watchman
Phil Harvey
Sgt. Powell
Eddie Parker
Donald as a Monster
Ronnie Rondell Jr.
Student
Anne Anderson
Student
Crew (9)
Jack Arnold
Director
Jack Kevan
Creature Design
Joseph Gershenson
Producer
Ted J. Kent
Editor
Bud Westmore
Makeup Artist
Alexander Golitzen
Art Direction
Russell Metty
Director of Photography
David Duncan
Writer
Clifford Stine
Visual Effects