Stephen Boyd as Brad Killian

Jean Seberg as Emily Hamilton

James Mason as Alan Hamilton

Curd Jürgens as Grueningen

Daniel Emilfork as Mejid

Mauro Parenti as Cremona

José María Caffarel as Algate

Carlos Montoya as Ahmed

Memphis Slim as Himself

Henri Garcin as Lawyer

Víctor Israel as Baron

Aldo Sambrell as Carcopino

Luciano Pigozzi as Medina

Cris Huerta as Nico Bizanthios

Tito García as Spyros Bizanthios