Gorgon is referenced in The Avengers: Earth's Mightiest Heroes episode "Widow's Sting".
The Kree Sentries appear in The Avengers: Earth's Mightiest Heroes episode "459."
The New Avengers are featured in The Avengers: Earth's Mightiest Heroes episode named after the team.
Bi-Beast has appeared in The Avengers: Earth's Mightiest Heroes episode "Hulk vs the World".
The Sleeper appears in The Avengers: Earth's Mightiest Heroes episode "Winter Soldier."
Rhodes appears in The Avengers: Earth's Mightiest Heroes episode "Iron Man is Born!"
Jocasta appears in The Avengers: Earth's Mightiest Heroes episode "Ultron Unlimited."
Annihilus appears in The Avengers: Earth's Mightiest Heroes episode, "Assault on 42."
The Destroyer appears in The Avengers: Earth's Mightiest Heroes episode "Powerless."
The Microverse appeared in The Avengers: Earth's Mightiest Heroes episode "Yellowjacket."