21 Incredibly Obscure Marvel Movie Easter Eggs

14. Big Hero 6 - Avengers: Age Of Ultron

Ahead of Age of Ultron's final battle, Tony Stark has to choose an A.I. program to replace J.A.R.V.I.S. and settles on the soothing female A.I. F.R.I.D.A.Y.

However, among the pile of other possible A.I. is not only Jocasta, an Ultron-created female A.I. from the comics, but even more intriguingly, Tadashi, clearly referring to the brother of Big Hero 6's protagonist Hiro Hamada.

Big Hero 6 is, of course, loosely adapted from the comic of the same name, and while it'll certainly never be officially incorporated into the MCU for obvious reasons, it's still fun for Tony Stark to seemingly have knowledge of the superhero team.