|First Episode||Barney's Sidecar|
|Last Episode||Barney's Sidecar|
|Family|| Tilly (Sister)|
|Portrayed by||Virginia Sale|
Mrs. Begg's arrives at the Mayberry Courthouse complaining of a lady speeder. She goes on to tell Andy about her sister "Tilly", who had long teeth (caused by a gum condition) and that kids would call her the "Beaver". She was portrayed by Virginia Sale.