Clint Walker had a contract dispute with Warner Brothers, which led to his briefly leaving the show. Under his contract, Walker had to give Warner Brothers 50 percent of his personal appearance fees, and he could only record music under the Warner Brothers label.

He also played the lead in Baker's Hawk (1976), and turned in a good performance as a villain in the TV movie Scream of the Wolf (1974). Lately he and several of his colleagues from "The Dirty Dozen" provided the voices for the animated film Small Soldiers (1998).

Walker's final role came seven years later, when he provided the voice of Nick Nitro for the movie "Small Soldiers" (1998). Clint Walker died in 2018. He was 90 years old.

Walker's good looks and imposing physique (he stood 6 ft 6 in (1.98 m) tall with a 48 in (120 cm) chest and a 32 in (81 cm) waist) helped him land an audition where he won the lead role in the TV series Cheyenne.