Eric Cartman goes on a quest to find out who his father was. But when he learns who his mother slept with matters get complicated... because she slept with everybody in town.



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Episode complete credited cast:
Mary Kay Bergman ...
Mrs. Crabtree / Liane Cartman / Sharon Marsh (voice) (as Shannen Cassidy)
Stan Marsh / Eric Cartman / Mr. Mackey / Officer Barbrady / TV Announcer / Phillip / Grandpa Marsh / Bob Saget / Second Native American / Denver Bronco #1 / Denver Bronco #2 / Mr. Garrison / Randy Marsh / Dr. Mephesto / Narrator (voice)
Kyle Broflovski / Kenny McCormick / Man at Barn Dance / Jimbo Kern / Terrance / Bob Saget Announcer / Chief Running Water / Halfy (voice)
Chef (voice)
Kitty (voice)


Cartman begins to wonder why all the kids at school have fathers but him. When he asks his mother who his real father is, she tells him about the night of the drunken barn dance, when he was conceived. Unfortunately, Mrs. Cartman had sex with just about every man in town that night. Dr. Mephisto can perform a DNA test to determine who the father really is, but the test costs $3,000. How can Eric raise the money to learn the truth? Written by Jean-Marc Rocher <>

Plot Summary | Add Synopsis


Animation | Comedy


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Release Date:

25 February 1998 (USA)  »

Company Credits

Production Co:

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


Toddy Walters provided the vocals for the love song used at The Drunken Barn Dance. Walters was romantically involved with Trey Parker at the time the episode was being produced, and would continue to write and sing for the show throughout its third season. See more »


At the end when the question is proposed as to who Cartman's dad is, Mephesto refers to the Denver Broncos as the 1989 Denver Broncos. Just seconds later, the narrator refers to them as the 1991 Denver Broncos. See more »


Liane Cartman: Chief, I want your hot man-chowder!
Chief Runningwater: Well, HEL-LO!
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Spoofs Not Without My Daughter (1991) See more »


Canon in D
Written by Johann Pachelbel
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Frequently Asked Questions

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User Reviews

Part One Of An Exciting Two Parter!
29 July 2012 | by (United Kingdom) – See all my reviews

Cartman's Mom Is A Dirty Slut was the very first episode that was a two parted episode which Trey Parker And Matt Stone made. The plot evolves around Cartman who asks his Mom who his father is. The South Park Gang go on a quest to find out who Eric Cartman's Father is and finding out information about The Drunken Barn Dance that happened on the exactly same night as Cartman's Mother's pregnancy. It is a great episode which ends the season on a cliffhanger and The Terrance And Phillip In Not Without My Anus episode premiers at the beginning of Season Two! If you are a South Park Fan and you have not seen it yet, please watch it! You will not be disappointed!

Overall Rating: 8/10!

Overall Rating For South Park Season One: 17/20!

2 of 2 people found this review helpful.  Was this review helpful to you?

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Member Berries Goodgoodness-163-381912
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Member berries are a metaphor for the 2 party system joshcbrln
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Black Hawk Down music at the end was an excellent touch Haha ephraima
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