Stuart is a supporting protagonist in the Tales of Arcadia franchise, appearing in 3Below and is set to appear in Trollhunters: Rise of the Titans. He is a Durian who comes from the planet of Durio, the owner of Stuart Electronics, and an ally of Aja and Krel Tarron. He is also the ex-girlfriend of Gwendolyn. After Sergeant Costas was fired by Colonel Kubritz, Stuart hired him and the two recreated Seklos's Cannon to stop Morando.
He is voiced by Nick Frost.
Having been on the planet Earth for 30 years, Stuart is very accustomed to human culture and is proven to be a very supportive individual. He was selfless enough to help his friends get to Area 49-B so they could get a part of the Daxial Array for the Mothership so they could return to Akiridion-5. He also helped Sergeant Costas on rebuilding Seklos's Cannon again so that the Tarrons can stop Morando when he is merged with Gaylen's Core, and is among those who stay behind on Earth while Aja returns to Akiridion-5 to be their Queen after the deaths of King Fialkov and Queen Coranda.