Robert Lowery
Ken Morgan
Cast (16)
George Macready
Prof. Ernst
Ralph Morgan
Prof. Franklin Arnold
Carole Mathews
Babs Arnold
Willie Best
Flash
Jack Ingram
Dick Nordik
Anthony Warde
Joe Flint
Ted Mapes
Joe Butler
Eddie Parker
Blake
Stanley Price
Mead
Charles King
First Cop with Thor
Kenneth MacDonald
Police Inspector Hamilton
Bud Osborne
Mason
Ray Corrigan
Thor
John Elliott
Prof. Marsden
Kit Guard
Zoo Guard
Crew (9)
Howard Bretherton
Director
Royal K. Cole
Screenplay
Sherman L. Lowe
Screenplay
Lee Zahler
Music
Dwight Caldwell
Editor
Earl Turner
Editor
Ted Mapes
Stunts
Eddie Parker
Stunts
L. William O'Connell
Director of Photography