Miller is a Gemini award-winning voice actor, who has played characters in dozens of animated series and video games. He recently played Nartuza in Avatar: Frontiers of Pandora, Winston Churchill in Assassin's Creed: Syndicate, and David Sarif in Deus Ex: Mankind Divided, but is best known for playing the Dark Prince in Prince of Persia: The Two Thrones. Recent credits include Kody Kapow (Uncle, Mister Chen), Atomic Puppet (Professor Tite-Gripp), George Of The Jungle (Tiger), My Big Big Friend (Bongo), Skatoony (Hedley-Diddly-Dee), Atomic Betty (Sparky), and Magi-Nation (Orwin, Freep, Ashio). Miller and Craig Francis also provide all the original voices for their animated web series' with Kidoons.