Ken Osmond net worth: Ken Osmond is an American actor who has a net worth of $500 thousand. Ken Osmond was born in Glendale, California, and began acting before he started kindergarten, appearing in commercials. He studied acting, dance, and voice at private institutes after his regular school day while growing up, and made the transition from commercials to speaking roles in feature films when he was nine. After multiple guest spots on such shows as "Lassie", "Fury", and "The Adventures of Ozzie and Harriett", he was cast in the role that would make him a household name, as Eddie Haskell on "Leave It to Beaver". After the run of "Leave It to Beaver" ended in 1963, he acted intermittently, and then began a career in law enforcement. He retired in 1988. He has since reprised the role of Eddie Haskell in various "Leave It to Beaver" sequels, and had guest starring roles on such shows as, "Happy Days", "Rags to Riches", and "Parker Lewis Can't Lose".