Cast
William Benedict
Spud
Everett Brown
Mogu
Ed Brady
Ivory Patrol Lieutenant
Jack Mulhall
Sgt. Gates
Al Bridge
Capt. Trowbridge
William Desmond
Dock Official
Forbes Murray
The Doctor
Frances Robinson
Lora Lacey
Al Shean
Professor Tyler
Harry Wilson
Henchman
Stanley Blystone
Capt. Clark
Ernie Adams
Henchman Becker
Kenneth Harlan
Spencer, Trader
Lane Chandler
Patrolman Kelly
Charles Murphy
Henchman
Charles Sullivan
River Boat Crewman / Henchman
Frankie Thomas
Tim Tyler
Frank Mayo
Jim Conway
Ethan Laidlaw
Patrol Guard Rocky
Eddie Parker
Henchman
Norman Willis
Spider Webb
Anthony Warde
Garry Drake