Jack Albertson (June 16, 1907 – November 25, 1981).
A former song-and-dance man and veteran of vaudeville, burlesque, and Broadway, Jack Albertson is best known to audiences as "The Man" in the TV series Chico and the Man (1974), for which he won an Emmy. In 1968 Albertson won the Oscar for Best Supporting Actor in The Subject Was Roses (1968), a part which also won him the Tony award during its Broadway run.
His other notable roles include Grandpa Joe in Willy Wonka & the Chocolate Factory (1971) and Manny Rosen in The Poseidon Adventure (1972).
Albertson guests on three episodes of The Donna Reed Show: "The Fatal Leap" (Season 2, Episode 26), "Alex's Twin" (Season3, Episode 6), and "The Poodle Parlor" (Season 3, Episode 26).