Richard Burton as Brown

Elizabeth Taylor as Martha Pineda

Alec Guinness as Major H. O. Jones

Peter Ustinov as Ambassador Manuel Pineda

Paul Ford as Smith

Lillian Gish as Mrs. Smith

Georg Stanford Brown as Henri Philipot

Roscoe Lee Browne as Petit Pierre

Gloria Foster as Mrs. Philipot

James Earl Jones as Dr. Magiot

Zakes Mokae as Michel

Douta Seck as Joseph

Raymond St. Jacques as Captain Concasseur

Cicely Tyson as Marie Therese

Robin Langford as Angelito Pineda (uncredited)

Dennis Alaba Peters as César (uncredited)

Thomas Baptiste as Haitian Soldier (uncredited)

Make Bray as Haitian Soldier (uncredited)