Page "Go, Diego, Go!" Paragraph 3

Diego is Dora's older cousin ; Dora makes several cameos in the series, usually without Boots.

Diego's older sister, Alicia ( voiced by child actress Serena Kerrigan ), is a computer whiz and also bilingual ; she directs the animal rescue calls that come into the center.

She also assists Diego in helping the animals they love.

Alicia is responsible and kind-hearted and always kind to her little brother.

Though she is described as 11 years old, she is often seen performing tasks ( most obviously driving a motor vehicle ) that should only be done by a person several years older.