Shelly Marsh is a fictinal character in Matt and Trey's animated sitcom South Park. She is Stan Marsh's sister. She is named after Trey's Sister Shelly Parker.

Shelly Marsh





Voiced By:

Mary Kay Bergman, Eliza Shnider, Mona Marshall, April Stuart (currently)


Sharon Marsh (mother), Randy Marsh (father), Stan Marsh (brother), Jimbo Kern (uncle), Flo Kimbell (aunt), Marvin Marsh (grandpa)

First Appearence:

An Elephant Makes Love to a Pig


Shelly is filled with anger because of the head gear she must way, in order to vent this she beats up on her younger brother Stan. In the episode "Cat Orgy" she confesses to Cartman that nobody likes her at school because of her head gear and also becaus she is ugly.


Sharon MarshEdit

Sharon is her mother. They get along fairly well and she does not notice the way Shelly treats Stan.

Randy MarshEdit

Randy is her father. They don't spend much time together but seem to get along fine. He doesn't notice the way she treats Stan.

Stan MarshEdit

Stan is her brother, she beats him up in order to vent her anger.

Episodes Where She is PromanentEdit

"An Elephant Makes Love to a Pig"-First Appearence

"Chickenpox"-Shelly gets chickenpox, and because she is already thirteen is could be harmfull.

"Cat Orgy"-Babysits Cartman and has her boyfriend Skyler over. Later she and Cartman get revenge on him.

"Mr. Hankey's Christmas Classics"-Sings "I Saw Three Ships"

"The New Terrance and Phillp Movie Trailer"-Sends the boys to the store for tampons.

"Over Logging"-When the internet goes out she cant contact her online boyfriend.

"Pandemic"-Runs away from the guini pigs.

"Eat, Pray, Queef"-Gets caught up in the queefing fad.