<Li> Wally Cleaver (Tony Dow) is the son of Ward and June Cleaver and the older brother of Beaver . When the show opens, Wally is 12 and in the eighth grade at Grant Ave . Grammar School . He is an above average student and a top - notch athlete, eventually lettering in three sports . Wally is popular with his peers as well as adults, and, has little difficulty attracting girlfriends, among them Mary Ellen Rogers and Julie Foster . The girls referred to Wally as "the absolute most ." His pals include Tooey Brown, Chester Anderson, the awkward Clarence "Lumpy" Rutherford and smart - aleck Eddie Haskell . Wally comes down hard on both Lumpy and Eddie when they pick on Beaver . Wally acts as a bridge in the show between his parents and his brother, often translating parental communications into kidspeak for Beaver's benefit and keeping Ward and June informed of Beaver's feelings, plans, and whereabouts . Leave It to Beaver was actor Tony Dow's first dramatic experience . He would later play the role in spin - offs . The character Wally was portrayed by Paul Sullivan in the pilot episode . </Li> <Li> Theodore "Beaver" Cleaver (Jerry Mathers) is the younger son of Ward and June Cleaver and Wally's brother . When the show opens, Beaver is seven years old ("almost eight") and in the second grade at Grant Ave . Grammar School . Beaver is all - boy with baseball, carnivals, comic books, money - making schemes, and animals of all kinds high on his list of interests while very proper ladies, dance lessons, bathing, and homework test his patience to the limit . Through the series' entire six - season run, Beaver shares a bedroom and adjoining bath with Wally . In one episode, he moves into the guest room after a spat with Wally but returns to the safety of his old bedroom when shadows in the guest room spook him . Beaver is not the athlete his brother is, but he does play football and wins his school team's Most Inspirational Player award . He also performs in many school plays . Beaver has several one - shot pets (an alligator, a rabbit, pigeons, and other creatures) through the series' run . Though Beaver has many friends his own age, his best friend is Gus, an old fireman in the neighborhood, who gives Beaver sound advice and tries to keep the boy on the straight and narrow . Beaver wants and tries to do the right thing but cannot help going astray and usually faces a moral lecture from his father at the end of each episode regarding some misadventure he has suffered or mistake he has made . Actor Jerry Mathers played the role in the pilot and the show's spin - offs . </Li> <P> Beaver's best pals include apple - munching Larry Mondello (Rusty Stevens, November 22, 1957--June 6, 1960), Gilbert Bates (Stephen Talbot, March 19, 1959--June 6, 1963), Hubert "Whitey" Whitney (Stanley Fafara, October 4, 1957--June 6, 1963), and the old fireman, Gus (Burt Mustin, October 4, 1957--February 24, 1962). Except for Gus, Beaver's friends steer him into trouble time and again . Other friends include Harry Henderson (Keith Taylor), a chubby, bespectacled boy brought in after Rusty Stevens' departure, and Richard Rickover (Richard Correll, April 30, 1960--October 18, 1962). </P> <P> Judy Hensler (Jeri Weil, October 4, 1957--October 15, 1960) is Beaver's snitching, goody - goody classroom nemesis on the show . Penny Woods (Karen Sue Trent, February 20, 1960--January 20, 1962) filled the nemesis role when Judy was dropped . Other friends include Lumpy's sister Violet Rutherford, (Wendy Winkleman, 1957 and Veronica Cartwright, February 19, 1959--May 2, 1963). Benjie Bellamy (Joey Scott) and Chuckie Murdock (Rory Stevens) are both small boys and Cleaver neighbors who cause trouble . Beaver's notorious classmate Angela Valentine is an unseen character, mentioned a dozen times in the series but never shown on screen . </P>

Who were beavers friends on leave it to beaver
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