Callan Stuart Brunker is a Canadian animator, storyboard artist, screenwriter, and film director. He is best known for directing The Weinstein Company's animated film Escape from Planet Earth (2013), ' (2017), Nickelodeon's ' (2021) and ' (2023), all of which he co-wrote with his business partner Bob Barlen.
Cal Brunker has frequently collaborated with his partner Bob Barlen since 2009's Ollie & the Baked Halibut. Before his directorial debut with Ninjamaica and then 2013's Escape from Planet Earth, Brunker has worked as a storyboard artist and an animator on films such as ', Horton Hears a Who!, and Despicable Me. He directed films such as Escape from Planet Earth and '. Brunker and Barlen have written screenplays for Arctic Dogs, ', and The Son of Bigfoot in which they co-executive produced.
He also directed the film ', a feature film adaptation of the Nick Jr. Channel's Paw Patrol animated series. Serving as the director and co-writer and once more collaborating with Barlen alongside Billy Frolick, it was produced by Spin Master and Nickelodeon Movies, and released by Paramount Pictures in August 2021.