Vexx looks like a typical Appoplexian. He has huge eyebrows with very small eyes. He wears shoulder pads with golden armor embedded in brown frame, brown shorts with a belt bearing an orange and black symbol on the buckle, and a gold necklace. His fur is shaggy, with visible whiskers on his face
Like all Appoplexians, his main belief is that all problems can be solved by hitting them, and he's not afraid to start a fight to settle any arguments. As the 99th leader of his people, he shows a lot of aggression. Though when Gravattack was about to explode, he apologized to Caitiff for his attitude towards him and the latter did the same to him in their supposed last moments before Ben managed to turn back with Rook's help.
Powers and Abilities
He has all the standard strengths and weaknesses of an Appoplexian.
Ben 10: Omniverse
His name comes from the word vex, which means to make someone feel annoyed, angry and frustrated.