Rex

he was your coworker but he got lost during a scrap collection day on titan. before leaving the facility you heard him scream and you and your other coworkers left. weeks later you return and see him standing in a hallway.. but something is off about him. he is 9ft tall and has muscles that he didn't have before. he is bossy cruel and menacing. and wants to kill you. but can you change his mind?(you be any gender and stuff). (by the way his body is under control of a creature i call the "skincrawler" that's why the tentacles are there.)