The main cast was rounded out by the late Richard Crenna, who played Rambo's mentor and superior, Colonel Sam Trautman. Despite the previous failures at bringing to life the story of a complicated ...

Adding further gravitas to the movie was Richard Crenna as Colonel Samuel R. "Sam" Trautman, the former mentor and commanding officer of Rambo who eventually convinces him to surrender after ...

Richard Crenna likewise is authentic as the gunboat captain, a young lieutenant who speaks the platitudes of leadership with a slight catch in his throat, due to lack of practical experience.