It can be said Batman is the excuse, the last drop of water, the last brick to complete the most fearsome demon in history. Joker and Batman as half of each other, understood in the sense that this person plays an indispensable role for the other in the biggest battle between good and evil. Stan Lee and Avengers Endgame Characters Signature Poster. Fortunately, the Joker character has not been excluded from the story with a death in the early part of the Batman series according to the original plan, so readers have the opportunity to hold their breaths to watch the gravitational balance. between Batman and Joker.