Lumpy Rutherford

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Clarence "Lumpy" Rutherford
Frank Bank in his debut episode "Lumpy Rutherford".
First appearance	"Lumpy Rutherford" (January 24, 1958)
Last appearance	"The All-Night Party" (May 30, 1963)
Created by	Joe Connelly Bob Mosher
Portrayed by	Frank Bank
In-universe information
Gender	Male
Family	Fred Rutherford (father) Geraldine Rutherford (mother) Unknown (brother) Violet Rutherford (younger sister) J.J. (daughter)

Clarence "Lumpy" Rutherford is a fictional character in the television sitcom Leave It to Beaver. The show aired from October 4, 1957 to June 20, 1963. Lumpy is a bit of a bully and, with Eddie Haskell, is one of Wally Cleaver's friends.

Lumpy was portrayed in the original series by Frank Bank. The actor also appeared as Lumpy in the sequel series, The New Leave It to Beaver (1985–1989). "Lumpy" was portrayed by Justin Restivo in the 1997 spin-off film, Leave It to Beaver, while his portrayer Frank Bank made an appearance in the film as "Frank".