|Doctor Helen Cho|
|[List of appearances]|
Doctor Helen Cho is a character who first appeared in LEGO Marvel's Avengers.
Helen Cho helped heal Hawkeye's wound he got after the Avenger's latest mission to Sokovia to retrieve Loki's staff from HYDRA and Baron Von Strucker. Back at her institute, Ultron, Scarlet Witch, and Quicksilver used Loki's staff to control her and force her to build Ultron a new body with her life cradle which could create skin tissue. Captain America, Hawkeye, and Black Widow were successful in stealing the cradle with the body inside away from Ultron and the twins. Tony Stark and Bruce Banner inserted J.A.R.V.I.S's consciousness in to the body in the cradle to create a force powerful enough to combat Ultron, they created Vison.