Peggy Cap (born July 19th, 2026) is one of the adopted daughters of Marci and Matthew Cap. She and her biological vigintuplet siblings were born in Mexico City, Mexico. They were abandoned by their teenage mother named Roberta at the age of 3 weeks. They were later adopted by the age of 2.
- Father: Matthew Cap
- Mother: Marci Cap
- Brothers: Axayacatl Cap, Acacitli Cap, Itzli Cap, Atl Cap, Motecuhzoma Cap, Mayahuel Cap, Papan Cap, Macuilmalinal Cap
- Sisters: Zeltzin Cap, Chantico Cap, Ayauhcihuatl Cap, Chicomecoatl Cap, Atlacaya Cap, Papantzin Cap, Tepin Cap, Xochitl Cap, Acolhnahuaca Cap, Atotoztli Cap, Izel Cap
- Her full name is Peggy Bónita Cap
- Her least favorite food is cabbage