[2] Bos recalled that the film was only one day's work but was interested in the project as it involved Claudia Cardinale and was "directed by the great Visconti".

[2] Bos then began to star in Westerns, with his first role being the leading man in Edoardo Mulargia's Go With God, Gringo.

[2] He initially wanted to be credited as Roel Bos but the producer and he would eventually agree on Glenn Saxson.

[4] Bos would return for the sequel film Il marchio di Kriminal released in 1967 and directed by Fernando Cerchio.

[7] Towards the end of the 1960s, he began starring in German sex comedies directed by Franz Antel and Sergio Bergonzelli such as School of Erotic Enjoyment before stopping his acting career.