Pepe Arias

as José Eluterio Costa "El Profesor Cero"

Zully Moreno

as María Emilia Núñez / Zulema Ríos

Enrique García Satur

as Don Teodoro Bargueño / Juan Aníbal Gómez

Ada Cornaro

Carlos Cores

Osvaldo Miranda

as Ernesto Barrera

Juan José Piñeiro

as Raúl Seco