Criti Noll

Criti Noll was the Skrull Imposter of Captain America who tricked the Avengers into splitting up so that Earth would be ripe enough for the Skrulls to invade. His deception lasted for a long time until the real Captain America arrived back on Earth to defeat Noll and lock him up with the rest of the Skrulls on Prison 42.

In Ultima, Criti Noll was freed from Prison 42 by Padro Lodo, who used the powers of darkness to transform Noll into a Heartless known as the Dark Patriot Skrull, and then recruit the Heartless Skrull Avengers into the Organization as Heartless Generals. Criti Noll, now a Heartless, has the ability to transform into a giant muscular reptile heartless when his darkness is extremely high.