cast
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Frankie Thomas
Tim Tyler
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Frances Robinson
Lora Lacey
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Jack Mulhall
Sgt. Gates
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Al Shean
Professor Tyler
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Norman Willis
Spider Webb
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Anthony Warde
Garry Drake
- Earl Douglas Jules Lazarre
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William Benedict
Spud
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Frank Mayo
Jim Conway
- Alan Gregg Brent
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Stanley Blystone
Capt. Clark
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Everett Brown
Mogu
- Skippy JuJu
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Ernie Adams
Henchman Becker
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Ed Brady
Ivory Patrol Lieutenant
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Al Bridge
Capt. Trowbridge
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Lane Chandler
Patrolman Kelly
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William Desmond
Dock Official
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Kenneth Harlan
Spencer, Trader
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Ethan Laidlaw
Patrol Guard Rocky
- William McClain Native
- Chuck Morrison Henchman
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Charles Murphy
Henchman
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Forbes Murray
The Doctor
- Pat J. O'Brien Patrolman Berry
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Eddie Parker
Henchman
- Tom Steele Ivory Patrolman
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Charles Sullivan
River Boat Crewman / Henchman
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Harry Wilson
Henchman