Paul Harrison Tibbitt IV (born May 13, 1968) is an American animator, writer, and voice actor, best known for his work on the animated series SpongeBob SquarePants. After its creator Stephen Hillenburg resigned in 2004, Tibbitt took his position of showrunner for the show's fourth through ninth seasons. He also took over as the voice of Potty the Parrot, whom Hillenburg had voiced until his resignation. Tibbitt made his feature film directorial debut directing '. He studied in the Character Animation program at the California Institute of the Arts.
In 2015, Vincent Waller (a creative director) and Marc Ceccarelli (a writer and storyboard director) took Tibbitt's place as supervising producer and showrunner. It was also announced that Tibbitt would leave the series after season 9 to work on ' (which was produced and released by a separate crew with limited involvement from the show's crew), but he lent his directing and writing position to Tim Hill.