News ‘Leave It to Beaver’ actor Ken Osmond, known for role as Eddie Haskell, dies at 76 May 19, 2020USA TODAYComments Off on ‘Leave It to Beaver’ actor Ken Osmond, known for role as Eddie Haskell, dies at 76 Ken Osmond, best known for his role as troublemaker Eddie Haskell opposite Jerry Mathers on the TV series "Leave It to Beaver," has died at 76.