|Age||80's or 90's|
|Friends||Blanche and Beatrice|
|Enemies||Grojband, Trina Riffin, and Jammy|
|Latest Appearance||That's My Jam|
Bertha is an old lady with curly gray hair and a blue head band. She has glasses, blush, and a pink shirt.
Bertha is a nice and dear, but competitive old lady. In the episode Rockersize, she was the nicest of all the old ladies, but that all ended when she became a Gorillandma and she turned into a rampaging monster who destroyed everything she hated. Even then, Bertha "politely" forced her lifestyle down everyone's throat. She is shown to be very competitive and feisty when it comes to any sort of competition. In That's My Jam, she was furious when she was competing against Corey and Trina in the Summer Jam Jam and she threw a huge fit when she lost. In War and Peaceville, she got into a big argument with Beatrice over their heritages which evolved from a verbal argument, to an all out fist fight.