Charles Bronson as Capt. Wolf Larsen

Catherine Mary Stewart as Flaxen Brewster

Marc Singer as Johnson

Len Cariou as Dr. Picard

Clive Revill as Thomas C. 'Cookie' Mugridge

Christopher Reeve as Humphrey Van Weyden

Shane Kelly as Leach

Gavin Buhr as 2nd Police Officer on Ferry Martinez

Garry Chalk as Chandler / First Mate

Tom McBeath as Latimer

Stan Barrett as Ofty Ofty

Dee Jay Jackson as Smoke

Eli Gabay as Dogbreath, Helmsman

Russell Roberts as French Frank (as Russell J. Roberts)

Bill Croft as Donovan

John Novak as Jameson Damisk

Peter Haworth as Reginald Brewster

John Destry as 1st Police Officer on Ferry Martinez (as John Destrey)

Richard Faraci as Larsen Man (uncredited)

Rachel Hayward as Ann Treadwell

Andrew J. Fenady as Bartender on Ferry Martinez (as A.J. Fenady)

William Samples as Charles Furuseth