|Occupation||Student, part-time babysitter|
|Religion||Roman Catholic, temporarily Atheist and Mormon|
|Voiced by||Formerly: Mary Kay Bergman, Eliza J. Schneider, Currently: April Stewart|
|First Appearance||An Elephant Makes Love to a Pig|
Shelly is Stan's older sister. She's got huge headgear braces on her teeth, enjoys using the word "turds", and, mostly in earlier seasons, loves beating the crap out of Stan. Although she doesn't like her little brother, she sticks up for him when he gets into trouble, and agrees with him on many occasions. She is a huge fan of Lorde, and feels like her parents "don't understand her".
She briefly had a musician boyfriend named Skylar (Cat Orgy, s3e07) , an online boyfriend named Amir (Over Logging, s12e06), and a vegan boyfriend named Larry Feegan, before he got killed by Spiderman (Randy Marsh) in the episode Broadway Bro Down, in s15e11. Needless to say, none of these relationships lasted.
- ”You can’t run for your past, TURD! APOLOGIZE AND MAKE AMENDS.”