James Arness as Kirk Hamilton

Kasey Rogers as Elaine Jeffries

Gloria Petroff as Janice Jeffries

Bill Kennedy as Martin Shannon

Pierre Watkin as Magistrate Jeffries

Tom Hubbard as John Hartley

Jane Harlan as Nancy Holden

Tom Monroe as Merchant Capt. Tallman

Rye Billsbury as Pirate Captain Hackett

Fred Kohler Jr. as Nat Mercer

Tim Graham as Salty

Richard Bartell as Mr. Davis

Robert Carson as Naval Capt. Allison

Joey Raye as

Charlene Hawks as

Charles Regan as

Don Riss as Narrator

James Guilfoyle as Dr. Wakeland

Hank Mann as

Cap Somers as

Guy Bellis as [Credited, but edited]

Herman Cantor as Fuller - Sailor