Cantinflas as Feliciano

Gina Romand as Carlota

Claudio Brook as Alex

Fanny Cano as Bebe

Guillermo Zetina as Jefe de Contraespionaje

Emma Roldán as Doña Angustias

Quintín Bulnes as Agente

Carlos León as Agente

Guillermo Rivas as Espía

Jorge Russek as Espía

Ramón Valdés as Original XU 777

Francisco Reiguera as Odilon Campos Santos

Julián de Meriche as (uncredited)

María Herrero as (uncredited)

André Toffel as (uncredited)

Maricarmen Vela as (uncredited)

Xavier Massé as (uncredited)

José Wilhelmy as (uncredited)

Adolfo Aguilar as (uncredited)

Alberto Catalá as (uncredited)

Ángel Merino as (uncredited)

Jorge Mondragón as (uncredited)

Manuel Zozaya as (uncredited)

Rafael de Córdoba as (uncredited)

Armando Gutiérrez as (uncredited)