Two prominent Young Avengers in the comics have had minor roles in the MCU, hinting at bigger things in store.
In “The Falcon and Winter Soldier” live-action series, viewers were introduced to Isaiah Bradley (Carl Lumbly), a former Korean War veteran and test subject injected by the Super Soldier Serum as a part of Project Rebirth. In the show, Elijah Richardson portrays his grandson Eli, who is living with Isaiah when Sam Wilson (Anthony Mackie) arrives to learn about the former hero. In “Young Avengers” #1, Isaiah, a former Captain America, sees his grandson follow in his footsteps, joining the team and taking up the mantle of Patriot with his own enhanced powers. While Eli hasn’t become Patriot in the MCU, Marvel appears to be slowly setting up his potential heroic turn.
In Kieron Gillen, Jamie McKelvie, and Matt Wilson’s “Young Avengers” run, Kid Loki found his way onto the team. The reborn trickster god struggles with his future fate as a villain, while his teammates are largely unsure whether he can be trusted. He proves to be a valuable, unpredictable team member, albeit extremely cheeky and mischievous. Kid Loki showed up in the “Loki” streaming series, where Jack Veal played him as a variant of the titular character sent to the Void for killing his brother, Thor. Kid Loki’s future in the MCU hasn’t been revealed, as he was last seen helping Loki escape the dark realm while choosing to stay himself.