Paulo Costanzo is a Canadian actor. He is best known for playing Aximili-Esgarrouth-Isthill (Ax) in the TV series Animorphs, the roles of Rubin Carver in the comedy film Road Trip, Alexander Cabot in Josie and the Pussycats, Michael Tribbiani in the NBC sitcom Joey, Evan R. Lawson in the USA Network series Royal Pains, and Lyor Boone in the ABC political drama Designated Survivor.

Animorphs is a television adaptation made by Protocol Entertainment based on the Scholastic book series of the same name by K. A. Applegate. It was made for YTV for Season 1 and Global for Season 2 in Canada and Nickelodeon for the United States. The series was broadcast from September 15, 1998 to October 8, 1999 in the United States and Canada.