A bunch of waterfront youths pursue the Sea Raiders, a gang of saboteurs.
as Billy Adams
as Toby Nelson
as Bilge
as Butch
as Swab
as Carl Tonjes
as Brack Warren
as Aggie Nelson
as Tom Adams
as Leah Carlton
as Capt. Olaf Nelson
as Elliott Carlton
as Jenkins
as Zeke
as Pug Anderson
as Capt. Lester
as Whaler Captain
as Fenwick the Inventor
as Lug
as Krans
as Desk Sergeant
as Guard at Hospital
as Duke
as Mate on the 'Astoria'
as Island Guard
as Speeding Motorist (archive footage)
as 'Astoria' Officer
as Sven - Whaler Crewman
as Tony - Grocer
as First Island Guard
as 'Dolphin' Radioman
as Chris - Second Island Guard
as Coral Strand Crewman
as Island Guard-Launch Pilot
as Agent Burke
as Jim - Police Boat Pilot
as Sub Captain
as Island Guard
as Angry Motorist
as Coral Strand Crewman / Whaler Crewman
as Fenwick's Guard
as Pete - Whaler Crewman
as Policeman
