This week on the show, we continue our “What If” series with another thought experiment: what if some of the alternative castings mentioned over the years had actually gotten the role? What if John Candy had played Louis Tully? What if Jeff Goldblum had played Egon Spengler? And what if Eddie Murphy had played Winston Zeddemore? All of these and more are explored as Troy and Chris think of reasons the castings may have worked (or, in some instances, why it’s probably better it didn’t).