Carmen Larrabeiti
(Hallie Hobart)
Tony D'Algy
(David Stone)
Félix de Pomés
(Mark Stone)
Miguel Ligero
(Charlie Thorne)
Amelia Muñoz
(Telefonista)
Manuel Vico
(Ezra Stone)
Manuel Russell
(Doctor Reynolds)
Pedro Barreto
(Kent Carr)
Mercedes Servet
(Tia Betty)
José Sierra de Luna
(Hammond)
Carlos Díaz de Mendoza
(Monk McConnell)