With every update we get about SNL writer and stand-up John Mulaney’s new NBC pilot, the show sounds more impressive. Deadline reports that Martin Short and Elliott Gould have signed on to co-star in the potential show, an untitled multi-cam comedy centered around a naive comedian named John (played by Mulaney) who lives with two roommates named Jane and Seymour and has a job writing jokes for a game show. Gould will play John’s gay neighbor, and Short will play Lou Cannon, John’s boss and the host of the game show he works on. We previously reported that Short was in talks for the role last month, but he’s now officially signed on. Lorne Michaels and former 30 Rock co-showrunner Robert Carlock are producing alongside Mulaney, who created the show. The roles of Mulaney’s roommates Jane and Seymour have yet to be cast, but based on how the show’s cast is shaping up, it’ll probably be another couple of super impressive comedy legends playing the parts.