Alfred Mulock Rogers (June 30, 1926 – May 1968), better known as Al Mulock or Al Mulloch, was a Canadian actor, director, and acting teacher. He trained at the Actors Studio and initially worked on the stage. After moving to England in the 1950s, he co-founded the London Studio, to teach method acting, and worked in film and television. He moved to Spain in 1966 and appeared in a number of spaghetti Westerns, including Once Upon a Time in the West, during the production of which he died by suicide. (Via Wikipedia)
