Mami

Elena "Mami" Marquez is Dora's single mother and the joint antagonist in Caillou and Dora: The Teenage Years. She disapproves of Dora and Caillou's bad behavior and often reacts to their escapades and misadventures by grounding her daughter for extensive periods of time. She and Caillou's father Boris usually team up in those circumstances.

In Episode 7, Mami survived being shot by a mugger in the restaurant.

In Seasons 1-5, Mami wore a purple dress with matching shoes. However, starting with Season 6, she switches to a purple crop-top, a purple plaid skirt, and the same shoes.

Trivia
Her nickname is "Bar Slut" as referred to by Dora. It is first used in Episode 2 after Dora disgraces the restaurant business. It is so called because of Mami becoming pregnant with Dora in that very place. This joke will often end with Mami slapping Dora in the face.

Her husband, Papi, does not appear in the series. It is likely they have divorced as in the case with Boris. Her nephew, Diego appears in this episode "A Lovely Day".