Rondo is the deuteragonist of Allegra's Window.
Rondo is Allegra's older brother. He is in the first grade, and treats as a role model for his sister. Though he often tries to act as if he is superior to her, he honestly cares for Allegra and will do anything to protect her.
Rondo has purple skin and black beady eyes. His hair is auburn. He wears a multicolored-striped sweater alongside a open vest, blue jeans and red sneakers.
Rondo appears in many episodes of Allegra's Window. He introduced in "My First Day at Daycare" and was last seen in "Mr. Cook's Christmas."