The Mayor’s very competent assistant, a statuesque redhead. Ms. Bellum is a very beautiful, tall, shapely lady with a great deal of curly red hair and a red dress and speaks with a throaty, alluring, and quite unruffled voice. She handles things the Mayor can’t, which is practically everything. Her face is never revealed onscreen (except for one instance in a form of a dog in “Monkey See, Doggie Do” and until “The Powerpuff Girls Rule“).
Whenever she appears, an object will either block her face or the camera will cut off everything above her neck. Whenever she is the center of attention (as when Blossom’s mind was switched to her body or when she fought Sedusa) her hair often covers her face. Other onscreen characters often claim that she is very pretty, with the exception of the abrasive Talking Dog.
In the bleak future of the episode “Speed Demon,” she expresses an obsessive attachment to the Mayor, possibly proving that she is in love with him despite the fact he’s married. She attended elementary school with the Professor and Miss Keane and attended high school with Sedusa and Femme Fatale prior to the creation of the Powerpuff Girls.
Ms. Bellum is also a good fighter as she can fight against Sedusa. She also has high intelligence. Ms. Bellum is often the voice of reason for the girls.
In Demashita! Powerpuff Girls Z, Miss Sara Bellum possesses blonde hair, a red dress (Which is sometimes white), she has 2 gold bangles(one on each hand) and black high heel shoes. Usually, Miss Bellum covers her face with a tablet computer, which has lipstick imprinted on it. While the Mayor is different from his original counterpart and is more competent, Miss Bellum in the anime still does most of the mayor’s work for him in a manner similar to the original Miss Bellum, and still appears to be the brains of the operation. Also, Fuzzy Lumpkins is in love with her, and primary she is conquisted, however, she does not reciprocate his feelings, but later she hates Fuzzy. She is voiced by Youko Kawanami in the Japanese show and is voiced by Nicole Oliver in the English dub.
Some scenes in The Powerpuff Girls with Ms. Bellum have errors of her neck being too long at times.