Jason Alexander plays Jerry’s right hand man, George Costanza. George has a wacky mindset. He described himself the best in one episode stating that his “whole life is a lie”. Not having many moral feelings, George is the one who always tries the craziest, unethical ideas. As Jerry’s best friend, he’s also tied into Jerry’s life quite a bit. George tends to be the leading cause of Jerry’s relationship struggles. In fact, at one point, the two were mistakenly identified as being in a dating relationship themselves. Not that there’s anything wrong with that.