Rendall was born in Toronto, Ontario, the son of Cathy and Henry Rendall. He has two older brothers, David and Matthew. His father is Jewish and his mother is Christian and he celebrates both Jewish and Christian holidays. Rendall attended the Interact Program at Vaughan Road Academy in Toronto, where he became good friends with fellow Canadian actress Ellen Page.
Career
Rendall started acting at the age of ten, when he asked his parents if he could try his hand at acting. Fortunately, around the same time, the Cameron Maclntosh London touring production of the musical "Oliver" was holding auditions for children. Having had no formal training in either acting or singing, he surprised everyone when he was cast in the role of Spider, and as understudy to the lead role, Oliver. He later starred in several films, including The Impossible Elephant, Tales from the Neverending Story, the multi-award-winning Touching Wild Horses opposite Jane Seymour, Disney's The Scream Team with Eric Idle, the Court TV Peabody Award-winning true story, The Interrogation of Michael Crowe, Don McKellar's dark comedyChildstar, opposite Jennifer Jason Leigh, Eric Stoltz and Dave Foley; the title role in with Ed Begley, Jr. and Graham Greene, NBC's mini-series Revelations opposite Bill Pullman and Natascha MacElhone, and Francois Girard's Silk. Rendall played supporting roles in the films 30 Days of Night, opposite Josh Hartnett and Melissa George, and Charlie Bartlett, with Anton Yelchin and Kat Dennings. In 2009, he starred in the films, Victoria Day, directed by David Bezmozgis and The Exploding Girl, directed by Bradley Rust Gray.
Voice acting
After Justin Bradley ended voicing Arthur, Rendall took his place for three seasons. He also dubbed over Bradley's voice for reruns of Season 6 due to Bradley's voice being too deep and lacking the vocal range of Michael Yarmush the original Arthur voice In 2003, he voiced Noodle in the children's show The Save-Ums. In 2005, he voiced the 14-year-old Jester character of the New Zealand CGI animated show Jane and the Dragon. He has also provided voices for other animated shows, for example King, Time Warp Trio, and Wayside.
