Director/a
Ray Taylor
DIRECTOR/A
Mack V. Wright
Reparto (por orden de créditos)
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 (uncredited)
Don Brodie
Dirigible 'San Francisco' Radioman [Chs. 1, 11] (uncredited)
Ed Cassidy
Joe Davis - Intelligence Chief [Ch. 10] (uncredited)
Allan Cavan
Captain of Dirigible 'California' [Chs. 13-14] (uncredited)
Edmund Cobb
Crosby (uncredited)
Lester Dorr
Dirigible 'California' Officer [Ch. 14] (uncredited)
Val Duran
Half-Caste Drummer (uncredited)
Frank Ellis
Rontree - Sailor-Thug in Stocking Cap (uncredited)
Roscoe Gerald
Price - Cave Thug in Visor (uncredited)
Henry Hale
Mercer - Cave Thug at Desk (uncredited)
Oscar 'Dutch' Hendrian
Grover - Gang Headquarters Majordomo [Ch. 12] (uncredited)
F. Herrick Herrick
Tollar - Sub Captain (Ch. 2,3,4,10-13 - 14) (uncredited)
John David Horsley
Grover's Co-pilot (uncredited)
Jerry Jerome
Wallace - Dirigble Henchman [Ch. 13] (uncredited)
Cactus Mack
Fosdick (uncredited)
Charles Marsh
Dirigible 'San Francisco' Asst. Radioman [Chs. 1, 11] (uncredited)
Allen Mathews
Agent M-2 [Ch. 11] (uncredited)
Ralph McCullough
Goebel's Lab Assistant (uncredited)
Charles McMurphy
Inspector O'Hara [Chs. 10-11] (uncredited)
Bud Osborne
Ellis - Mate (uncredited)
Eddie Phillips
Ellsworth's Male Secretary [Chs. 1, 9-10] (uncredited)
Loren Riebe
Johnson - Seaman [Ch. 7] (uncredited)
Buddy Roosevelt
Wireless Operator (uncredited)
Jack Stewart
Police Sergeant [Ch.10] (uncredited)
Harry Strang
Grover - Gang Pilot [Chs. 4-6] (uncredited)
Henry Sylvester
Fairchild - Captain of Dirigible 'San Francisco' [Chs. 1, 11] (uncredited)
Al Taylor
Marco - Sailor-Thug in Officer's Hat (uncredited)
Evan Thomas
Agent 1 (uncredited)
Larry Thompson
Agent 2 (uncredited)
Francis Walker
Spy (uncredited)