Cast & Crew

Directed by

Ray Taylor
Mack V. Wright

Writing Credits

Morgan Cox
(screenplay) and
Barry Shipman
(screenplay) and
Maurice Geraghty
(screenplay)
Morgan Cox
(original story) and
Barry Shipman
(original story) and
Maurice Geraghty
(original story)

Cast

Mala
Agent Ray Mala
Rex
Rex - the Wonder Horse
Buck the Dog
Buck
Mamo Clark
Princess Melani
Herbert Rawlinson
Grant Jackson
William Newell
Hank McGlaurie
John Ward
Anthony Tupper
John Dilson
E.G. Ellsworth
Selmer Jackson
Mr. Canfield
John Picorri
Porotu
George Chesebro
Draker - Island Operations Chief
Bob Kortman
Wilson - Gang Yacht Captain
George Cleveland
Goebel - Gang Scientist
Lloyd Whitlock
Lamar - Headquarters Gang Member [Chs. 1-6]
Tiny Roebuck
Eppa - the Wrestler
Tracy Layne
Larkin - Gang Chalkboard Monitor
Herbert Weber
Stevens
Anthony Pawley
Clark - Dying Man on Clipper Island
Allen Connor
Jim Taylor - Infiltrator [Chs. 10-11]
Frazer Acosta
Teekar - Porotu's Chief Henchman
Don Brodie
Dirigible 'San Francisco' Radioman [Chs. 1, 11]
Ed Cassidy
Joe Davis - Intelligence Chief [Ch. 10]
Allan Cavan
Captain of Dirigible 'California' [Chs. 13-14]
Edmund Cobb
Crosby / Harris (uncredited)
Lester Dorr
Dirigible 'California' Officer [Ch. 14]
Val Duran
Half-Caste Drummer
Frank Ellis
Rontree - Sailor-Thug in Stocking Cap
Roscoe Gerald
Price - Cave Thug in Visor
Henry Hale
Mercer - Cave Thug at Desk
Oscar 'Dutch' Hendrian
Grover - Gang Headquarters Majordomo [Ch. 12]
F. Herrick Herrick
Tollar - Sub Captain (Ch. 2,3,4,10-13 - 14)
John David Horsley
Grover's Co-pilot / Agent Ed Varne (uncredited)
Jerry Jerome
Wallace - Dirigble Henchman [Ch. 13]
Cactus Mack
Fosdick / Manning (uncredited)
Charles Marsh
Dirigible 'San Francisco' Asst. Radioman [Chs. 1, 11]
Allen Mathews
Agent M-2 [Ch. 11]
Ralph McCullough
Goebel's Lab Assistant
Charles McMurphy
Inspector O'Hara [Chs. 10-11]
Bud Osborne
Ellis - Mate
Eddie Phillips
Ellsworth's Male Secretary [Chs. 1, 9-10]
Loren Riebe
Johnson - Seaman [Ch. 7]
Buddy Roosevelt
Wireless Operator
Jack Stewart
Police Sergeant [Ch.10]
Harry Strang
Grover - Gang Pilot [Chs. 4-6]
Henry Sylvester
Fairchild - Captain of Dirigible 'San Francisco' [Chs. 1, 11]
Al Taylor
Marco - Sailor-Thug in Officer's Hat
Evan Thomas
Agent 1
Larry Thompson
Agent 2
Francis Walker
Spy

Produced by

Nat Levine
producer
Sol C. Siegel
associate producer

Cinematography by

William Nobles
(photography)
Edgar Lyons
(uncredited)

Editing by

Helene Turner
William Witney

Art Direction by

Ralph Oberg
(uncredited)

Production Management

J. Laurence Wickland
production supervisor

Sound Department

Harry Jones
sound engineer
Roy Granville
sound editor (uncredited)

Special Effects by

John T. Coyle
special effects (uncredited)
Howard Lydecker
special effects (uncredited)
Theodore Lydecker
special effects (uncredited)

Stunts

Ted Mapes
stunts (uncredited)
Loren Riebe
stunts (uncredited)
Tom Steele
stunts (uncredited)
Jack Stewart
stunts (uncredited)

Costume and Wardrobe Department

Robert Ramsey
wardrobe supervisor (uncredited)

Editorial Department

Murray Seldeen
supervising editor

Music Department

Harry Grey
music supervisor
Alberto Colombo
composer: stock music (uncredited)
Sidney Cutner
composer: stock music (uncredited)
Karl Hajos
composer: stock music (uncredited)
Arthur Kay
composer: stock music (uncredited)
Hugo Riesenfeld
composer: stock music (uncredited)
Leon Rosebrook
composer: stock music (uncredited)

Additional Crew

Tracy Layne
horse trainer (uncredited)
Carl Spitz
dog trainer (uncredited)
All Filters