Bea turned out to be Larry David's real mother on a 2005 episode of this series
[DOC] [TLE] Bea Arthur - Wikipedia [PAR] Beatrice Arthur also known as Bea Arthur, was an American actress, comedian, 
singer, and ... Nearly 50, Arthur's tart turn appealed to viewers and to executives 
at CBS, who, ... Arthur made a guest appearance in a two-part episode, but the 
new series ... She also appeared as Larry David's mother on Curb Your 
Enthusiasm.