Robert Hudson Walker Jr. (April 15, 1940 – December 5, 2019) was an American actor. Walker was cast role in the "" episode "Charlie X" (1966) as Charles 'Charlie' Evans. Walker had a role in an episode of "Columbo" ("Mind Over Mayhem", 1974), and as an innocent longshoreman who takes the blame for a murder on "Quincy, M.E." ("The Hero Syndrome", 1977).