Lopitos, who is horribly inefficient but quick-witted, is invited (because of the current ambassador's superstition about 13 sitting down to a meal) to a banquet attended by the ambassadors of both superpowers. After the news of a series of coups d'état in Los Cocos arrives throughout the meal, Lopitos becomes the official ambassador. At a summit of world leaders, the representatives of the two world superpowers court the allegiances of third-world diplomats to tilt the balance of global power in their favor. The last diplomat to remain unaligned, Lopitos instead harangues the superpowers for infringing on the rights of developing countries to self determination, talking to them with his point of view as a citizen not as ambassador because he arranged his demise as ambassador one day before his speech.
Cantinflas
as Lopez 'Lopitos' / His Excellency the Ambassador of Los Cocos
Sonia Infante
as Lolita
Guillermo Zetina
as Lic. Don Tirso de la Pompa y Pompa, consejero
Tito Junco
as General León Balarraza, agregado militar
Miguel Manzano
as Don Serafín Templado, secretario
José Gálvez
as Camarada Osky Popovsky, primer ministro
Víctor Alcocer
as Almirante Neptuno Aguado, agregado naval
Maura Monti
as Camarada Tania
Eduardo Alcaraz
as Don Salustio Menchaca, embajador de Los Cocos
Fernando Wagner
as Representante de Salchichonia
Carlos Riquelme
as Presidente de la República de Pepeslavia
Quintín Bulnes
as Mayordomo Petrovsky