Phantom Raiders

Nick Carter

Bartholomew

Mr. Al Taurez

Cora Barnes

'Gunboat' Jacklin

Franklin Morris

John Ramsell Jr.

Dolores

Eddie Anders

John Ramsell Sr.

Cafe Waiter

Sailor

Andy MacMillan

Dr. Grisson

Seaman

Pierson - Sir Edward's Aide

Taurez's Henchman

Steve Donnigan of Scotland Yard (uncredited)

U.S. Agent Hilton

Ysidro - Morris' Head Clerk (uncredited)

Taurez's Henchman

Port Policeman

Mr. Yamamoto

Man in Cafe (uncredited)