Robert Hudson Walker Jr. (April 15, 1940 – December 5, 2019) was an American actor who appeared in films including Easy Rider (1969) and was a familiar presence on television in the 1960s and early 1970s.

His film debut was in The Hook in 1963;[1] other film appearances, in addition to Easy Rider, included the title role in Ensign Pulver (1964) with Burl Ives and Walter Matthau; The War Wagon (1967) with John Wayne and Kirk Douglas; the title role in Young Billy Young (1969), alongside Robert Mitchum; and Beware!

He starred in Angkor: Cambodia Express (1982) with Nancy Kwan, Christopher George, Woody Strode, and Sorapong Chatree.

In the 1970s, 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.

He guest-starred in two episodes of Murder, She Wrote with Angela Lansbury, the first time in "The Corpse Flew First Class" (1987), and as a mentally handicapped man in "Shear Madness" (1990).