Daisy Márquez is the very beautiful big sister of both Alicia and Diego, and the eldest cousin of Dora, Guillermo, and Isabella. She appears in some episodes of Dora the Explorer and Go, Diego, Go, but has more appearances in the first one, than the latter. In the October 2004 episode Daisy, La Quinceañera, she turns 15. This would make her 14 in her first appearance in the November 2003 episode Dora Saves the Game.