Trevor has performed various anime roles, most notably Mu La Flaga of Mobile Suit Gundam SEED. Other anime roles include Mukotsu of Inuyasha's Shichinin-tai, Aizawa and Midou in Death Note, as well as the multiple faces of Alpha Q, and all Terrorcon drones, on Transformers Energon. In baseline animation, he has provided the voice of Pyro on X-Men Evolution. He also voices Hermiod on Stargate Atlantis as well as Prince Blueblood, Hoity Toity, and Fancy Pants in My Little Pony Friendship Is Magic.
He produces his own podcast, Voiceprint with Trevor Devall, where he interviews fellow voice actors and answers questions from fans.