Devlin Levin

Devlin Levin is Kevin 11's son and Ken's best friend. When they first met, Devlin tricked Ken into leading him to a Null Void Projector which he used to free  his father.

Devlin can change from a mutant form, which he got from his father, to his human form at will, unlike Kevin when he was young.

His mutant form looks like Kevin's when he was 11.

His name could have originated from Kevin's dad, Devlin, who was mentioned by Max Tennyson in "If All Else Fails". However, Max might have said Devin.

According to Max, he and Devlin/Devin were once partners but Devlin died from protecting Max from a bomb.