<Tr> <Th_colspan="2"> Information </Th> </Tr> <Tr> <Th> Gender </Th> <Td> Female </Td> </Tr> <P> Judy Hensler is a fictional character in the American television sitcom Leave It to Beaver . The show aired from October 4, 1957 to June 20, 1963 . Judy is a recurring character portrayed by Jeri Weil . She appeared in 31 of the show's 234 episodes, between October 1957 and October 1960 . </P> <P> Judy Hensler is a classmate of the series' hero, "Beaver" Cleaver . She makes her first appearance in the premiere episode, "Beaver Gets' Spelled", as a student in Miss Canfield's second grade class . Judy is a goody - goody who snitches on her school fellows, especially Beaver . In one episode, she believes Beaver is Miss Canfield's pet and urges him to prove her wrong by putting a spring - action snake in the teacher's desk drawer . Beaver does and regrets it . In another episode, Beaver begs his parents to buy him a sweater in a shop window . They buy it and Beaver wears it to school, only to discover Judy has the same sweater . Believing he has bought a girl's sweater, Beaver stuffs the sweater behind a candy machine at the movie theater and then faces discipline at home . On the show, Judy is rarely seen outside the classroom . She tries to curry favor with her teachers, but they are aware of her deviousness and keep her in check . Judy's parents are seen briefly in an episode about Beaver's being chosen to perform in a school play as a canary . Her last appearance is in the episode, "Beaver Becomes a Hero" (October 1960). She was later dropped and replaced by Penny Woods, who becomes Beaver's new nemesis . However unlike Judy, Penny becomes his frenemy and constant love - hate - relationship love interest . </P>

Who played judy on the original leave it to beaver