In 1954, he came to Puerto Rico and was quickly hired as floor coordinator for Telemundo due to his knowledge of both English and Spanish.
He was also the technical coordinator of El caso de la mujer asesinadita, one of the first Puerto Rican telenovelas.
He also worked with producers Henry Lafont, Gaspar Pumarejo, Luis Vigoreaux, Marta Silva, and Fernando Hidalgo.
Later on, the comedy took another route where Fernández' character became "Superpan", a superhero spoof like Chespirito's El Chapulín Colorado (Mexico), which airs on opponent television channel in Puerto Rico, WKAQ-TV.
Leopoldo Fernández last movie appearance was in 2003 in the film Latin Comedy: Una Comedia de Derecha para un Publico de Izquierda, where he co-starred with comedian, producer, writer, actress and director Janet Alvarez Gonzalez.