Roger Wendell Bowen was an American comedic actor and novelist, best known for his portrayal of Lt. Col. Henry Blake in the 1970 film M*A*S*H.

M*A*S*H is a 1970 American dark war comedy film directed by Robert Altman and written by Ring Lardner Jr., based on Richard Hooker's 1968 novel MASH: A Novel About Three Army Doctors. The picture is the only theatrically released feature film in the M*A*S*H franchise.