(Bólidos de acero)
A shy and humble young man overcomes his fears and becomes a racing champion.
Ricardo Passano
Martin Hernández / Zapatilla
Nelly Darén
Nélida
Mario Medrano
Amigo Martin
Mario Baroffio
Don Pietro
Oscar Villa
Técnico acompañante
Domingo Márquez
Amigo Martin 2
María Luisa Santés
Doña Carolina
Semillita
Manchagrasa
