Ultron is an artificial intelligence and a main villain.
Trivia
- Ultron will become Thomas and Twilight Sparkle's enemy in Thomas and Twilight Sparkle's Adventures of Avengers: Age of Ultron.
- Ultron will become Tino Tonitini's enemy in Weekenders Adventures of Avengers: Age of Ultron.
- Ultron will become Winnie the Pooh, Yogi Bear and Danny's enemy in Pooh's Adventures of The Avengers: Age of Ultron.
- Ultron will get his revenge against Thomas and Twilight in Revenge of Ultron, Thomas and Sparkle Join Overwatch, and Thomas and Sparkle's Adventures of Overwatch: Age of Quantomo.