Iron Skrull

The Skrull imposter of Iron Man, he and the other Skrull Avengers were created by Queen Veranke as soldiers to invade Wakanda and steal the Vibranium for the Skrull Empire.

He tricked Ms. Marvel by lying to her that all the Avengers were replaced with Skrulls following the battle with Loki, but the deception was later found out when the real Avengers arrived to defeat their imposters.

When the Skrull Iron Man unmasked himself, he revealed himself to be the most deranged and psychopathic of them all, laughing crazily with bulging eyes and flailing his tounge out as he awaited the inevitable demise.