Eloise Marsh

Eloise Marsh is a female fourth-grade student at South Park Elementary. She is a new student in the episode ''Alright, dude, let your life go on''. 
She is Stan's girl cousin from the west coast (most especifically from California, San Diego, La Jolla), she is her cousin by her father's familiar link. 
She gets very well with Stan, but not so much cause they don't have a very strong relationship, they are very distant.