Impressed his friend Rubén Aguirre with his comic performance at a party. Aguirre, who had been casted for "El Chavo del Ocho", recommended Villagrán to Chesperito, who was still looking for actors for the new show. Chesperito hired Villagrán who would then play Quico. Aguirre would play Professor Jirafales and Chesperito would star the show as Chavo.