Tab Hunter

Lt. Morgan Hayes

Frankie Avalon

Seaman Joseph Malzone

Scott Brady

Capt. Emmett Carey

Jim Backus

Bosun's Mate Ed Fennelly

Gary Crosby

Seaman Floyd Givens

Michael Dante

Lt. William 'Bill' Fourtney

David Landfield

Lt. Jim Cale

Jody McCrea

Seaman William Sherman

Aki Aleong

Seaman Ronald Davayo

Marc Cavell

Paul

Eva Six

Reiko

Duane Ament

Seaman Kingsley (uncredited)

Richard Bakalyan

Seaman Hiller (uncredited)

Jody Daniels

Seaman Jones (uncredited)

Joe Finnegan

Seaman Morris (uncredited)

Raymond Guth

Seaman Rich (uncredited)

Judy Lewis

Dream Siren (uncredited)

Alicia Li

Third Native Girl (uncredited)

Steve Mitchell

Seaman Nolan (uncredited)

Tony Scott

CPO Perez (uncredited)

Vernon Scott

Seaman Fowler (uncredited)

William Shatner

Narrator (voice) (uncredited)

Raynum K. Tsukamoto

Kawai (uncredited)

Wayne Winton

Seaman Patterson (uncredited)