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