Cho is a geneticist in charge of U-Gin, a genetics lab in Seoul, North Korea, and who also assisted and was enslaved to work against the Avengers in the aforementioned film. She created the body of Vision, while mind-controlled by Ultron, through Wanda Maximoff (Scarlet Witch).
- Avengers: Age of Ultron (2015)
- In mainstream Marvel Comics, Cho is the mother of Amadeus Cho, the Hulk's successor. In the novelization of The Incredible Hulk, one of the students at Culver University is named Amadeus, but aside from the non-canonocity of the book, the character is both the wrong ethnicity and age to be possibly be considered the son of Dr. Cho in Age of Ultron.