|Voiced by||Jim Meskimen|
- the Marvel Battlegrounds Toy Box Game with Disney Infinity 3.0 (only)
- the Toy Box for Disney Infinity 3.0 only, and
- all Toy Box Expansion Games (Disney Infinity 3.0).
He is a playable character in Disney Infinity 3.0, as confirmed at E3 on June 16th, 2015, and appears in the Marvel Battlegrounds Play Set. He was first seen in a promotional image for the game alongside Hulkbuster Iron Man, and was confirmed to appear in the game on Toy Box TV  and was released on November 2, 2015 in the US. 
Ultron will be able to summon droids and will magnetically draw enemies to him and then shoot them.  For his long ranged attack, he will have a "wave of destruction".
Ultron has a beam and can fly and a Super Move to summon his Ultron Drones that will attack anything he attacks.
- For more quotes from this character, see Ultron/Quotes.
- I am Ultron. I will not tolerate imperfection. Join me in my quest for the perfect world.
- I have identified your weak spot.
- Now you will taste what failure is!
- Unlike other figures, his figure is made of pieces instead of one solid piece, to match his film appearance.
- He is the first villain to be playable that is also a Robot.
- He is also, so far, the only playable Disney Infinity 3.0 Marvel villian.
- Ultron can interact with most of (if not) all of the playable Disney Infinity 2.0 Marvel characters in-game as he can identify Iron Man and Hulk who are 2.0 characters, making him the second 3.0 figure who can interact with characters from a past installment the first being Mickey Mouse (who can interact with Donald Duck and vice versa), however unlike Mickey and Donald it's unknown if the 2.0 Marvel characters can interact with Ultron back (this is likely due to the fact that all of the 2.0 Marvel characters can be played in the Marvel Battlegrounds Play Set which Ultron is playable in as the main villain). This would also apply to the other Marvel Battlegrounds playable characters as well such as Hulkbuster.
- For more game related media, see Ultron/Gallery.