Terence Hill
Sebastiano Coímbra / Elliot Vance
Bud Spencer
Antonio Coímbra / Greg Wonder
April Clough
Olympia Chavez
Harold Bergman
Double Agency Director
C.V. Wood Jr.
Police Officer
Dary Reis
Van der Bosch (as Dary Reiz)
Nello Pazzafini
Don Tango
José Van de Kamp
Bernardo
Fernando Amaral
Ángel Duarte
Roberto Roney
Nadiño
Ataíde Arcoverde
Vinicio (as Ataide Arcoverde)
Claudioney Penedo
Don Tango's Boss
Dennis Bourke
Albert von Eisenburg
Giancarlo Bastianoni
Tango's Thug / Mercenary (uncredited)
Franco Sattamini
Tango's Thug / Mercenary (uncredited)
Sergio Smacchi
Tango's Thug / Mercenary (uncredited)
Franco Ukmar
Tango's Thug (uncredited)
Carlos Kurt
One of the recruiters (uncredited)