Ultron is the main antagonist in the first season of What If...?, which takes place in the Marvel Cinematic Universe.
He is voiced by Ross Marquand.
Victims[]
What If...?[]
Season 1[]
What If... Ultron Won?[]
- Steven Grant "Steve" Rogers/Captain America - Killed by Ultron off-screen, body shown.
- Thor Odinson - Killed by Ultron off-screen, body shown.
- Dr. Robert Bruce Banner/Hulk - Killed by Ultron off-screen, body shown.
- Anthony Edward "Tony" Stark/Iron Man - Electrocuted to death by Ultron.
- Secretary Thaddeus "Thunderbolt" Ross - Killed when Ultron hijacked the worlds nukes and fired them around the world.
- Laura Barton - Killed when Ultron hijacked the worlds nukes and fired them around the world.
- 7,325,214,208 Unnamed People on Earth - Killed when Ultron hijacked the worlds nukes and fired them around the world.
- Thanos - Bisected in half vertically by Ultron.
- 50,000 Unnamed Asgardians - Blown up by Ultron when he destroyed Asgard.
- Peter Jason Quill/Star-Lord - Blown up by Ultron when he destroyed Sovereign.
- Gamora Zen Whoberi Ben Titan - Blown up by Ultron when he destroyed Sovereign.
- Drax the Destroyer - Blown up by Ultron when he destroyed Sovereign.
- 7,325,214,208 Unnamed People on Sovereign - Blown up by Ultron when he destroyed Sovereign.
- Korg - Blown up by Ultron when he destroyed Sakaar.
- Roscoe - Blown up by Ultron when he destroyed Sakaar.
- En Dwi Gast/Grandmaster - Blown up by Ultron when he destroyed Sakaar.
- 7,325,214,208 Unnamed People on Sakaar - Blown up by Ultron when he destroyed Sakaar.
- Ego - Blown up by Ultron.
- Captain Carol Susan Jane Danvers/Captain Marvel - Blown up by Ultron when he destroyed Xandar.
- 12,000,000,000 Unnamed People on Xandar - Blown up by Ultron when he destroyed Xandar.
- 36,626,071,040 Unknown People - Blown up by Ultron when he destroyed their planets.
- Total - 70,601,763,679
What If... The Watcher Broke His Oath?[]
- 7,325,214,208 Unnamed People on Earth - Killed by Ultron.
- Zombified Clinton Francis "Clint" Barton/Hawkeye - Blown up by Ultron.
- Zombified Samuel Thomas "Sam" Wilson/Falcon - Blown up by Ultron.
- Zombified Captain Steven Grant "Steve" Rogers/Captain America - Blown up by Ultron.
- 10,000 Zombies - Blown up by Ultron.
- Zombified Wanda Maximoff/Scarlet Witch - Incinerated when Ultron blew up the planet she was on.
- Total - 7,325,224,212
Kill Count[]
- Total - 77,926,987,891
- 36,626,071,040 Victims of Unknown Species and Gender
- 12,000,000,000 Xandarians
- All Victims of Unknown Gender
- 14,650,428,423 Humans
- 14,650,428,416 Victims of Unknown Gender
- 5 Men
- 2 Women
- 7,325,214,210 Sakaarans
- 7,325,214,208 Victims of Unknown Gender
- 2 Men
- 7,325,214,208 Sovereign
- All Victims of Unknown Gender
- 50,000 Asgardians
- All Victims of Unknown Gender
- 10,004 Zombies
- 10,000 Victims of Unknown Gender
- 3 Men
- 1 Woman
- 1 God
- All Men
- 1 Titan
- All Men
- 1 Zehoberei
- All Women
- 1 Kylosian
- All Men
- 1 Kronan
- All Men
- 1 Celestial
- All Men
Characters Killed by Ultron[]
- Steven Grant "Steve" Rogers/Captain America - Killed by Ultron off-screen, body shown.
- Thor Odinson - Killed by Ultron off-screen, body shown.
- Dr. Robert Bruce Banner/Hulk - Killed by Ultron off-screen, body shown.
- Anthony Edward "Tony" Stark/Iron Man - Electrocuted to death by Ultron.
- Secretary Thaddeus "Thunderbolt" Ross - Killed when Ultron hijacked the worlds nukes and fired them around the world.
- Laura Barton - Killed when Ultron hijacked the worlds nukes and fired them around the world.
- Thanos - Bisected in half vertically by Ultron.
- Peter Jason Quill/Star-Lord - Blown up by Ultron when he destroyed Sovereign.
- Gamora Zen Whoberi Ben Titan - Blown up by Ultron when he destroyed Sovereign.
- Drax the Destroyer - Blown up by Ultron when he destroyed Sovereign.
- Korg - Blown up by Ultron when he destroyed Sakaar.
- Roscoe - Blown up by Ultron when he destroyed Sakaar.
- En Dwi Gast/Grandmaster - Blown up by Ultron when he destroyed Sakaar.
- Ego - Blown up by Ultron.
- Captain Carol Susan Jane Danvers/Captain Marvel - Blown up by Ultron when he destroyed Xandar.
- Zombified Clinton Francis "Clint" Barton/Hawkeye - Blown up by Ultron.
- Zombified Samuel Thomas "Sam" Wilson/Falcon - Blown up by Ultron.
- Zombified Captain Steven Grant "Steve" Rogers/Captain America - Blown up by Ultron.
- Zombified Wanda Maximoff/Scarlet Witch - Incinerated when Ultron blew up the planet she was on.
Death[]
- Shot in the eye by Black Widow with an arrow and destroyed from the inside by Arnim Zola. (What If... The Watcher Broke His Oath?)
