Dex Alvin Dizznee has triplets for younger siblings named Bex, Lex and Rex. Dex’s real name is Dexter but he goes by Dex. Dex is super smart and his favourite pass time is building and programming cool devices, he’s super cool but very under appreciated. Dex Is dead loyal to those who show him attention since he craves it a lot. Dex hates reading. Dex does not stand for bullying weather it’s him being bullied or someone else, he will find a creative way to prank the bully back 