Director/a
Maurice Kline
DIRECTOR/A
Gustav Della Valle
Escritor/a
Curt Siodmak
ESCRITOR/A
Thomas M. Dykers
William D. Holmes
Reparto (por orden de créditos)
Don Megowan
Captain Fathom
Richard H. Cutting
Professor Barclay
Barbara Wilson
Carol Barclay
Kenneth Tobey
Jack Clyde
Rod Williams
Derek Taylor
David McMahon
Duncan
Robert Sampson
Gordon
David McLean
Seaman Duncan (uncredited)
