Vision

Vision was an android who possessed a synthetic body made from vibranium created by Ultron with Helen Cho's help, using the powerful artifact known as the Mind Stone to bring Vision to life. Originally conceived as the perfect form for Ultron, the body was taken by the Avengers before Tony Stark and Bruce Banner proceeded to upload the remnants of Stark's personal A.I. J.A.R.V.I.S. into it. Upon his birth, Vision declared he was the hybrid of both Ultron and J.A.R.V.I.S., one that would fight with them to protect humanity. Vision had then joined with the Avengers in the Battle of Sokovia, using his powers to prevent Ultron from transferring his consciousness to the internet, and allowing the Avengers to successfully put an end to Ultron.

Early Life
After Ultron obtains the Chitauri Scepter from the Avengers, and the Vibranium supply from Ulysees Klaue, he travels to Seoul, South Korea for his plan to create a new, and more powerful version of himself. Ultron mind controls' Stark's friend Dr. Helen Cho with the scepter, and forces her to use her synthetic tissue technology, combined with the Vibranium and the scepter's gem to create the perfect body for him.

Overtime, Helen's work on fusing the Vibranium and the synthetic tissue goes exceedingly well, and Ultron's new body is nearly ready for his use. After the body's construction was finished, Ultron uploads his memory into his new body. The upload does not finish as the Avengers arrive at the base, and Ultron is prompted to leave.

Tony uploads Jarvis into the body, who is revealed to have survived, however Thor makes an attempt to stop him. In doing so, he forces thousands of volts of electricity to surge through the body, animating it as Vision instead of shutting it down.