Federal Agents vs. Underworld, Inc.

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Fred C. Brannon

Director

Kirk Alyn

Insp. David Worth

Rosemary La Planche

Laura Keith

Roy Barcroft

Spade Gordon

Carol Forman

Nila

James Dale

Agent Steve Evans

Bruce Edwards

Prof. Paul Williams [Chs. 1-6]

James Craven

Prof. James Clayton [Chs. 1, 10-12]

Tristram Coffin

Frank Chambers [Ch. 8]

Tom Steele

Grey - Henchman [Chs. 1-3]

Tom Steele

Haskell - Pilot [Chs. 4-5]

Tom Steele

Larkin - Henchman [Chs. 7-8]

Dale Van Sickel

Mac - Henchman

Dale Van Sickel

False Prof. Graves [Chs. 6-7]

Dale Van Sickel

Cave Guard #1[Ch. 11]

Marshall Reed

Det. O'Hara [Ch. 9]

Robert J. Wilke

Zod - Pursuit Plane Pilot [Chs. 10]

Robert St. Angelo

Native #3 [Ch. 11]

Dave Anderson

Porter [Ch. 9]

James Carlisle

Prof. Elwood M. Graves [Ch. 6]

John Daheim

Cave Guard #2 [Ch.11]

Art Dillard

Native #2 [Chs. 11-12]

Jack O'Shea

Ali [Chs. 1, 10-12]

Basil Dickey

Writer

William Lively

Writer

Royal K. Cole

Writer

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