Charlton Heston as Richard 'King' Howland

Yvette Mimieux as Sloane Howland

George Chakiris as Dr. Dean Kahana

France Nuyen as Mai Chen

James Darren as Paul Kahana

Aline MacMahon as Kapiolani Kahana

Elizabeth Allen as Laura Beckett

Vaughn Taylor as Judge Blanding

Philip Ahn as Mr. Immacona

Marc Marno as Bobbie Chen

Harold Fong as Coyama

Edward Mallory as Robert Parsons

Yankee Chang as Newspaper Man (uncredited)

David Chow as Police Officer (uncredited)

Kam Fong as Loe Kim Lee (uncredited)

Richard Loo as Yamagata (uncredited)

Leo Ezell as Pianist (uncredited)

Seagi Faumunina as Blue Goose (uncredited)

Lou Gonsalves as Mario (uncredited)

King the Horse Cotton as King Howland's Horse (uncredited)

Clarence Kim as Sammy (uncredited)

Mark LeBuse as Heckler (uncredited)

Jack Matsumoto as Photographer (uncredited)

Frank Morris as Felipe (uncredited)

R. Ramos as Nurse (uncredited)