Cast

Don Megowan

Captain Fathom

Richard H. Cutting

Professor Barclay

Barbara Wilson

Carol Barclay

Kenneth Tobey

Jack Clyde

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Rod Williams

Derek Taylor

David McMahon

Duncan

Robert Sampson

Gordon

David McLean

Seaman Duncan

Crew

Curt Siodmak

Screenplay (Writing)

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Maurice Kline

Director (Directing)

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Gustav Della Valle

Director (Directing)

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William D. Holmes

Screenplay (Writing)