Mommy usually wears a long-sleeved red sweater with frilly yellow cuffs and collar, a blue headband, fashionable long blue pants and blue shoes with green soles and bows. It is unknown whether her pants are jeans. Mommy wears a red jacket, white blouse, blue skirt and high heel pumps to go to work and for formal nights, she wears a strap-less knee-length red dress.
She appears in about 93% or 214 of the 229 Caillou episodes.
Caillou's promise: she told Caillou to play nicely with his little sister not tattle on her and she asked Caillou to promise to let Rosie to play with him.