![Mercenaries of the Rio Grande Poster](https://image.tmdb.org/t/p/w500//pmzPF1FvllIwJE7y03NHnYcf9GL.jpg)
Mercenaries of the Rio Grande
57.67%
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March 4, 1965
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Adventure, Western
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.
Featured Crew
Artur Brauner
Producer
Robert A. Stemmle
Screenplay
Robert Siodmak
Director
Cast
![Lex Barker](https://image.tmdb.org/t/p/w300//9Bsvemc5lCvKNJdS5bt4BEa7TFR.jpg)
Lex Barker
Dr. Karl Sternau
![Gérard Barray](https://image.tmdb.org/t/p/w300//iW5tzZBi6rqwiyeWzQmciygALI4.jpg)
Gérard Barray
Count Alfonso di Rodriganda y Sevilla
![Rik Battaglia](https://image.tmdb.org/t/p/w300//brWak7RZkaukSHam1C6BuwOAG2z.jpg)
Rik Battaglia
Captain Lazoro Verdoja
![Michèle Girardon](https://image.tmdb.org/t/p/w300//jtJXqNISQ2bp6ZcROczWkelk9Ab.jpg)
Michèle Girardon
Josefa
![Alessandra Panaro](https://image.tmdb.org/t/p/w300//drgFMoHrmZIt3uEamL90B47r1Gy.jpg)
Alessandra Panaro
Rosita Arbellez