Sheen (full name Sheen Juarrera Estevez) was a minor character in 90's American cartoon series Jimmy Neutron.
Encounter with the Acachallas
One day in 2018 he was hired by Papa Acachalla to figure out why Papa had transformed into a bipedal dinosaur-like reptile. After parking his car in the garage (and deleting the garage door in the process) he promptly invaded the Acachalla household and locked the family out of it before using it to clone himself to make a friend. When the Acachallas tried to sneak back into the house and killed the clone, Billy tries to distract him by leading him and Papa into the spare living room before trapping him using Sally's Fortnite, only for Papa to point out that he also trapped everyone else in the room too, and they raced to get out before he took Papa and Sally hostage and made them pretend to be his friends, shooting Sally for saying "I don't want to be your friend anymore" when he invited them to play a game of 'Crates VS Crates'.
Billy helps Sally escape and they hide in a compartment above the stairs on the top floor and Billy tricks Sheen into coming looking for him by creating a clone of himself with a slightly deeper voice and baiting him. Sheen goes looking for Billy and falls for the trap and the real Billy shoots him down (which they admitted was probably unnecessarily violent for the channel). Unfortunately for them this allows Sheen to progress to his "final form", Ultra Lord Sheen, and he goes on to violently gun down everyone before going over to the pool, where Acachalla had Respawned, and telling him to stay out of it, before going for a short swim in it. He didn't get to swim for very long before he was gunned down by Billy again and Sally went for a swim in the pool while Sheen's body was still floating in it.
Papa decides he's tired of all the crap and tells everyone that they are going inside to have a "normal conversation as a normal family" and that "the first person to ruin this conversation gets a train to the face". Sheen continues to affirm his illegitimate claim to the house while Billy and Sally build Fortnite structures. Sheen shoots Papa with another train gun when he gets angry before Sally shoots him. Papa, at his wit's end, uses the Infinity Gauntlet's Energy Storm power to kill everyone. Sheen then begs to have his car back so that he can leave just as the video ends.