Answer
In the Rambo movie franchise, Colonel Samuel Trautman, played by Richard Crenna, serves as a crucial character. Trautman is a seasoned military commander who initially recruits and trains John Rambo, transforming him into an elite soldier during the Vietnam War. Despite their complicated relationship, Trautman remains a steadfast mentor and ally to Rambo, guiding and supporting him through various missions and challenges throughout the film series.