Alexandra Cartman
| Gender | Female |
| Age | Unknown; likely 10-12 |
| Hair Color | Brown |
| Occupation | Student |
| Religion | Roman Catholic |
| Grandmother | Mabel Cartman |
| Aunt | Liane Cartman |
| Cousins | Eric Cartman, Elvin Cartman |
| First Appearance | Merry Christmas Charlie Manson! |
Alexandra makes a couple of appearances in the early years of the show. She first appears at dinner with the Cartman family in Merry Christmas, Charlie Manson, after Eric gets a shirt from Grandma Cartman. She is seated at Liane's right side. She then appears when the family is forced out of the Cartman home by Nebraska police and Uncle Harold and Manson are arrested, and finally when the family visits Harold and Manson in prison at the end of the episode.