Greene was born in
San Francisco, California, the son of Gladys () and Harry Greene. Early in his career, Greene was frequently featured in westerns, and was credited with over 100 television and film appearances, including the 1962 film
This is Not a Test (as Mike Green). In October of 1966, he appeared as the character, Nubu, in the episode "Space Circus" of the TV series,
Lost in Space, as well as a leading role in the 1973 film
The Clones. He played Jimmy Hart,
William Petersen's ill-fated partner in
To Live and Die in L.A. He is perhaps best remembered in his co-starring role as Deputy U.S. Marshal Vance Porter in the short-lived
ABC–
Warner Brothers western series
The Dakotas, where he co-starred with
Larry Ward,
Jack Elam, and
Chad Everett. The series was controversially cancelled by ABC after only 19 episodes were aired during 1963. Greene died in
Maui, Hawaii in January 2020, at the age of 86. ==Partial filmography==