Alejandro Parodi as Dr. Pedro Sierra Genovés

José Carlos Ruiz as Dr. Jorge Martínez Abasolo

Rebeca Silva as Eva Aponte

Tito Junco as President

Ignacio Retes as Dr. Mario Zermeño

Martin LaSalle as Diplomatic

Eduardo Alcaraz as Dr. Luis Mario Zavala

Héctor Godoy as Luis Armando Torreros

Humberto Elizondo as R. C. Jiménez, journalist

Leonor Llausás as Widow of Alvarado

Zully Keith as Magdalena, Dr. Sierra Genovés' wife

Nora Lárraga 'Karla' as Health Inspector

Arlette Pacheco as Journalist

María Barber as President's Wife

Daniela Romo as Laura

Carlos Fernández as Bernardo Budillo

Ramón Menéndez as Dr. Miguel Garzón Riera

Roberto Dumont as Dr. Arcadio Rincón Núñez

Francisco Llopis as Eva's Father

Manuel Zozaya as Dr. Everardo Morell

Amado Zumaya as General

Jorge Fegán as Quintanar, Turism Secretary

Héctor Téllez as

Marco Antonio del Prado as

César Sobrevals as Minister

Marcelo Villamil as Lic

Alberto Isaac as Frihjof Hjolen, Norewgian Minister

Narciso Busquets as Julián Arango

Laura Quiroz as Singer

Sonia Aguilar as Singer

Zully Keith as Magdalena