Credit: John M. Heller/Getty Images

Frank Bank, best known for playing Clarence “Lumpy” Rutherford on the classic TV series Leave It to Beaver from 1957-1963, died April 13, according to numerous published reports.

Beaver star Jerry Mathers posted a message of condolence to his Facebook page on Saturday, writing, “I was so sad to hear today of the passing of my dear friend and business associate Frank Bank, who played Lumpy on Leave it to Beaver. He was a character and always kept us laughing. My deepest condolences to Frank’s family.”

On the show, Bank’s “Lumpy” Rutherford was the insecure and clumsy local bully who harassed the Cleaver boys, Wally (Tony Dow) and Beaver (Mathers).

The cause of death has not been reported.

After Beaver ended in 1963, Bank appeared on The Hollywood Squares, Family Feud, and the ’83-’89 The New Leave It to Beaver, but largely left acting to pursue a successful career as a bond broker.

He was 71 years old.

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