Dr. Karl Sternau, the personal physician of the count Bismarck, who spent much of his youth in Mexico, is sent back to that country during the occupation by French troops in the service of the Austrian 'Emperor' Maximilian, to carry an encouraging letter from U.S. President Lincoln to the nationalist Mexican president Benito Juarez.
Lex Barker
as Dr. Karl Sternau
Gérard Barray
as Count Alfonso di Rodriganda y Sevilla
Rik Battaglia
as Captain Lazoro Verdoja
Michèle Girardon
as Josefa
Alessandra Panaro
as Rosita Arbellez
Theresa Lorca
as Karja
Ralf Wolter
as Andreas Hasenpfeffer
Fausto Tozzi
as Benito Juarez
Hans Nielsen
as Don Pedro Arbellez
Gustavo Rojo
as Lieutenant Potoca
Kelo Henderson
as Frank Wilson
Jean-Roger Caussimon
as Marshal Bazaine