Hackus is a character who appears in The Smurfs 2 as a main character. He is Smurfette and Vexy's brother who originally was a Naughty created by Gargamel to serve him and his evil purposes, which include capturing Smurfette so that she would give the evil wizard the secret formula that would change the Naughties into Smurfs. However, when he and Vexy did become Smurfs, they would soon be used as part of Gargamel's Smurfalator for extracting Smurf essence.
Hackus is voiced by actor J.B. Smoove.
Smurfs' Village Game
He also makes an appearance in the Smurfs' Village app for iPhone and iPad with Vexy. They have a house which costs 1000 coins and a mini game.