Olivia is Mario's main ally in Paper Mario: The Origami King, taking a similar role to Kersti in Paper Mario: Sticker Star and Huey in Paper Mario: Color Splash. She is King Olly's younger sister. Her traits include her folded crown and hair, her yellow robe, and her spiky limbs. She can transform into large origami creatures on certain Magic Circles. This can be done on the field or in battles