A list of Original Characters exclusive to Threadbare South Park. Canon characters are also listed, but only tropes applying to their appearances in this series are listed, since they are so in-character and listing tropes they demonstrate in the actual show would be redundant, as they are already listed on the characters page for the official show.
Charlie Pierzynski
The main character of the series. A mostly good-natured, but awkward and impressionable girl who happens to look like a boy and have a name generally associated with boys. Becomes a periphial member of the boys' group, but is not treated any differently than anyone else the boys interact with.
- Big Sister Instinct: She's very concerned about her little sister, and is devastated to learn that her baby brother was taken away by child services.
- Blatant Lies: When explaining her bruises in the first story, she claims to have fallen down the stairs and ran into a table. They're actually from her mom.
- Character Blog: She has an ask account and a Twitter.
- Dreadful Musician: She plays ukulele... poorly.
- Happily Adopted: By the Marshes at the end of "Sisters Suck."
- Hilariously Abusive Childhood: Well, the hilarious part is up for debate, but she didn't really have the best childhood.
- Lady Looks Like a Dude: Clearly.
- The Lancer: At times.
- Littlest Cancer Patient: Briefly in the first story, after being force-fed bleach by her own mother.
- Mistaken for Gay: Due to her gender-neutral appearance, Bebe asks her out. Later, Stan's parents refer to her as a "little lesbian girl".
- She, Cartman, and Kenny actually do this to Stan in One of the Girls, by saying that since Stan is a "total pussy", and Wendy's a girl, that makes Stan a lesbian.
- Official Couple: With Kyle (kind of).
- She also has a close relationship with another OC, ParkerPants'.
- Original Character: Charlie and her siblings are all original characters. A case of Tropes Are Not Bad; Charlie is so flawed and interacts so well with canon characters without causing OOC moments, she could very well be an actual character on the show.
- One of the Boys: Downplayed. Although Charlie is indeed a member of the boys and she isn’t girly at all, this doesn’t stop them from thinking that she is just a “typical girl”.
- Sexy Secretary: Kenny thinks her tits are massive in "Mysterion Has Tittyvision", where she (as Stethoscope) becomes the secretary for Coon & Friends, though this is just Kenny being deluded.
- Sixth Ranger: Or, in the case of the boys, the fifth ranger.
- The Smurfette Principle: While other girls appear in the series, she's the only one to have a consistently major role.
- Super-Senses: Her alter-ego Stethoscope has this power.
- Tomboy with a Girly Streak: Charlie normally wear boyish clothes, has Boyish Short Hair, a name usually associated with boys, and enjoys boyish stuff and gross humor. However, she can occasionally show a girly side, much to the boys’ disgust.
- Unpopular Popular Character: She has very few friends in-universe, but many readers love her and her stories.
- Viewer Gender Confusion: In-universe example.
- Wise Beyond Their Years: Much like Stan and Kyle. She has a wide array of business and pop-culture knowledge.
Becca Pierzynski
Charlie's five year old little sister, and the second most-used OC.- Annoying Younger Sibling: At least Cartman thinks so.
- Berserk Button: She becomes addicted to Cartman's Gamestation in "Hedgehog", and when she's separated from it, she goes NUTS.
- Companion Cube: Mr. Bananapants, Cartman's old stuffed monkey.
- Cool Big Sis: She thinks this of Charlie.
- Cool Big Bro: She thinks similarly of foster brother Cartman.
- Happily Adopted: By the Cartmans at the end of "Sisters Suck".
- Parental Favoritism: Not exactly, but her mom didn't abuse her like she did with Charlie.
- Precocious Crush: She has one on Kenny in "Elephant Balls". In the end, she dumps him for Butters.
Jane Pierzynski
Charlie's unstable, abusive mother.- Abusive Parents: She beats Charlie so badly, the girl is left with multiple bruises on her body. When Mr. Mackey calls her to confirm the accusations, she beats Charlie so violently that she hospitalizes the poor girl. The doctors later find out that Charlie was force-fed bleach.
- Asshole Victim: Is subjected to an extremely one-sided Kangaroo Court, where even her lawyer refuses to defend her. Given what she did to Charlie, though, no one's going to feel sorry.
- Ax-Crazy: Most of her time in the first story is dedicated to showing how violent and unstable she is towards Charlie.
- Big Bad: Her abuse of Charlie makes her this for the first story.
- Disproportionate Retribution: She has brutally beaten Charlie for either being late getting home or getting a concerned call from the school counselor.
- Evil Redhead: Artwork on Charlie's ask account show that she has red hair.
- Freudian Excuse: It's somewhat implied that her husband and Charlie's birth father leaving is what made her who she is in the present.
- Given Name Reveal: Fall of the House of Pierzynski reveals her first name is Jane.
- Hated by All: When she hospitalizes Charlie and her abuse is exposed, practically everyone in town turns on her, and subjects her to a Kangaroo Court.
- Hate Sink: An extremely violent mother that beats her own daughter for the smallest or pettiest reasons, even almost killing her by force-feeding her bleach.
- Knight of Cerebus: Her abuse of Charlie is depicted completely seriously, and the story gets darker whenever she appears. The school even has a talk with the students about child abuse when she almost kills Charlie.
- Malicious Misnaming: She named Charlie "Charlie", not Charlotte, because she thought it would be funny. Charlie disagreed.
- Took a Level in Jerkass: Despite the above mentioned Malicious Misnaming, Jane in the flashback of Fall of the House of Pierzynski is much nicer than she is in the present. It's implied her husband leaving her had something to do with this.
Joe Pierzynski
Jane's husband and Charlie's birth father- Disappeard Dad: Never shows up in the present day, and is heavily implied to be this.
- "It" Is Dehumanizing: In the flashback to Charlie's birth, he refers to Charlie as "it", even though he's next to the hospital bed, and should've heard that the baby is a girl.
- Parental Abandonment: Is implied to have walked out on Jane and Charlie. This might explain why Jane is the way she is.
- Parental Neglect: Shows absolutely no interest in Charlie, telling Jane to "Call it whatever you want."