Child actor
Wally is portrayed in the series by Tony Dow. Dow portrays an adult Wally Cleaver in both the reunion telemovie, "Still the Beaver" (1983), and, in the sequel series "The New Leave It to Beaver" (1985–1989). Child actor Paul Sullivan, however, portrays the character in the series pilot, "It's a Small World" which aired in April 1957. In the 1997 film adaptation of the original series, "Leave It to Beaver", Wally is portrayed by Erik von Detten.