Referencing LMDs
Fans jumped out of their seats when Tony Stark mentioned Life Model Decoys in The Avengers. This name-drop was done in an attempt to escape a meeting with Agent Coulson. If you don’t know, LMDs are shape-shifting robots that can turn into anyone. They’re a staple part of the Iron Mac comics.
It took a while, but the LMDs eventually made it into the MCU in the ABC TV series Agents of S.H.I.E.L.D. In the TV show, LMDs could infiltrate the dying radical hate group, Watchdogs. This eventually led to the development of Aida’s character arc, one of the best villains of the entire series.