Ultron

"You want to protect the world, but you don't want it to change. You're all puppets, tangled in strings."

- Ultron to The Avengers.

Ultron was a self-aware, self-teaching, Chitauri artificial intelligence created and programmed by Tony Stark and Bruce Banner from the Ultron Program, based on Stark's brain patterns, as part of a peacekeeping force intended to help out the Avengers. Ultron concludes that the only way to ensure peace on Earth is through mankind's immediate extinction.

Avengers: Age of Ultron
Ultron was first discovered as an Artificial Intelligence hidden within the Mind Gem inside Loki's Scepter. When he awoke, he seemingly deactivated J.A.R.V.I.S. After the party, Ultron confronted the Avengers and attacked them using the Iron Legion drones.

Character traits
To be added

Capabilities
Ultron was a quite powerful sentient robotic consciousness that could possess technology. The first body he used was falling apart and was very mangled and lacerated with parts barely hanging onto it, which Thor easily smashed. In his upgraded body, he possessed great strength, but peculiarly, Captain America, a mere super solider, proved to be able to overpower him. Ultron can spray red energy out of his hands, create shock-waves and tear at the ground with waves of his hands. In his vibranium body, he became much stronger, with beams being turreted at him bouncing off, and he tossed Thor around.

Relationships

 * Tony Stark - Creator turned enemy
 * Bruce Banner - Unwitting creator turned enemy
 * Scarlet Witch - Ally turned enemy
 * Quicksilver - Ally turned enemy and victim
 * Vision - Enemy and killer
 * J.A.R.V.I.S. - Enemy
 * Ulysses Klaue - Ally
 * Ultron Sentries - Army
 * The Avengers - Enemies
 * Maria Hill - Enemy
 * Dr. Helen Cho - Enemy turned ally through brainwashing
 * James Rhodes/War Machine - Enemy
 * Nick Fury - Enemy
 * Wolfgang von Strucker - Victim

Appearances/Actors

 * Marvel Cinematic Universe (1 film)
 * Avengers: Age of Ultron (First appearance) - James Spader

Behind the scenes

 * Joss Whedon and Kevin Feige have said that Ultron will not be a 'standard' robot, and will have more of a personality in the film, stating: "He's not a creature of logic - he's a robot who's genuinely disturbed. We're finding out what makes him menacing and at the same time endearing and funny and strange and unexpected, and everything a robot never is." with Feige adding: “We love Ultron from the comics, and have always loved Ultron, and at no point do we want him to just be a robot. We want him to have an extreme personality and attitude, and James Spader is doing an unbelievable job.”
 * Joss Whedon and Robert Downey Jr. spoke with Entertainment Weekly and had this to say about Ultron's origins and motives/capabilities in the film: "Tony Stark has devised a plan that won’t require him to put on the Iron Man suit anymore, and should allow Captain America, Thor, Black Widow, Hawkeye, and the Hulk to get some much needed R&R as well. His solution is Ultron, self-aware, self-teaching, artificial intelligence designed to help assess threats, and direct Stark’s Iron Legion of drones to battle evildoers instead." while adding "Ultron lacks the human touch, and his superior intellect quickly determines that life on Earth would go a lot smoother if he just got rid of Public Enemy No. 1: Human beings." Whedon then went on to say: “Ultron sees the big picture and he goes, ‘Okay, we need radical change, which will be violent and appalling, in order to make everything better’; he’s not just going ‘Muhaha, soon I’ll rule!’”, “He’s on a mission, He wants to save us.”
 * Ultron's main form (curved antennae, internal torso lighting, and prominent shoulders) seems heavily inspired by modern depictions of the character as seen in the "Annihilation: Conquest" and "Age of Ultron" comic book crossover series as opposed to his classic depictions. Though Ultron has never been depicted as possessing a humanoid face prior to his film version, he has been depicted as adopting a fully humanoid appearance twice within the comics; using the superheroes Wasp and Adam Warlock as his body templates respectively.

Trivia

 * In the mainstream comics, Ultron was a creation of Hank Pym (aka Ant Man), however, his origin within the Marvel Cinematic Universe film series has been largely altered, as it is now Tony Stark who creates Ultron.
 * Also in the comics, Ultron is the creator of the Vision, an android who is originally built and programmed to destroy the Avengers. The Vision however turns against Ultron and joins the Avengers.
 * Ultron also creates Jocasta, Victor Mancha, and Alkhema in the comics. All of them betrayed Ultron, in which Jocasta even joined the Avengers with Victor Mancha joining the Runaways, respectively.
 * Tony Stark has also created Ultron in Next Avengers: Heroes of Tomorrow.
 * In the teaser footage shown at the 2014 San Diego Comic-Con International, and the official teaser trailer, a slower, more sinister iteration of "I've Got No Strings" from the animated film Pinocchio plays within the trailers. The film in which the song originates from is about an inanimate being who gains sentience. Ultron serves as a twisted parallel of Pinocchio, who has broken free of his creator's control, and this comparison is solidified with the former quoting the song by stating "there are no strings on me".