Federico Luppi as Pedro Bengoa

Julio De Grazia as Larsen

Ulises Dumont as Bruno Di Toro

Jofre Soares as El padre

Aldo Barbero as Ingeniero Rossi

Enrique Liporace as Ingeniero Basile

Arturo Maly as Dr. Garcia Brown

Rodolfo Ranni as Torrance

Jorge Hacker as Guido Ventura

Alberto Benegas as Golo

Ingrid Pelicori as Lea Bengoa

Jorge Chernov as Jorge

Cayetano Biondo as Bautista

Marcos Woinsky as El Polaco

Haydée Padilla as Amanda

Lidia Catalano as

Carlos Trigo as

Aldo Pastur as Operario 2 en cantera

Enrique Latorre as

Jorge Velurtas as

Felipe Méndez as Operario 1 en cantera

Héctor Calori as Médico

Carlos Verón as

Osvaldo De la Vega as

Enrique Otranto as Psicólogo

Cristina Aroca as

Miguel Angel Llobet as Botones

Alejandro Arando as Especialista en audiometría