Rex Dangervest

Rex Dangervest is the main antagonist of The LEGO Movie 2: The Second Part. He is a galaxy-defending archaeologist, cowboy and raptor trainer and while at first appearing as an ally of Emmet Brickowski, he reveals himself to be an embittered future Emmet who, after crashing and being thought dead by his friends, became resentful upon seeing them move on without him and built a time machine so he could travel back in time and cause the "our-mom-ageddon" as revenge.