Ryan Cartwright and Josh Brener join hosts Wil Wheaton and Felicia Day on the Stuart Fails to Save the Universe Official Podcast to discuss their roles as Kyle and Trevor, the comic book store duo who are “quantumly entangled” across the multiverse and whose bickering helps establish the social rules of each new universe. Brener also tells the hosts about the unusual makeup tests behind Trevor’s forehead transformation in the magic universe. Later, creators Chuck Lorre, Zak Penn, and Bill Prady are joined by DC president, publisher, and chief creative officer Jim Lee to discuss how being denied Green Lantern reshaped “Spoiler: We Couldn’t Get Green Lantern,” inspiring the episode’s mismatched superheroes and villains and its playful approach to comic book conventions. Lee also shares DC’s surprisingly extensive history with centaurs and shows off the Stuart Fails to Save the Universe comic cover he created. Finally, director Robert Duncan McNeill calls in to explain how the “dangerous” cosmic treadmill sequence was developed and filmed.

Joshua Malina joins hosts Wil Wheaton and Felicia Day on the Stuart Fails to Save the Universe Official Podcast to discuss his return as Captain Siebert, after his recurring role on The Big Bang Theory as President Siebert. Malina explains how an online post and a “shameless” message to Bill Prady helped land him the guest spot, and reflects on the different creative experiences of his early and later TBBT appearances and the freedom he found on Stuart. Outside of the Big Bang Theory universe, he also shares the remarkable story of how he once saved Aaron Sorkin’s life. Later, art director Walter Eckert discusses how the crew creates a new universe each week, from reimagining Stuart’s familiar comic book store to building wildly different environments for every episode.

Riki Lindhome joins hosts Wil Wheaton and Felicia Day on the Stuart Fails to Save the Universe Official Podcast to discuss “Spoiler: Dexys Midnight Runners Get a Royalty Payment.” Lindhome explains how a single text to Bill Prady brought her back into the Big Bang Theory orbit, why she sees Ramona Nowitzki as basically the same person in each universe, only with different levels of rage and success, and how she became the cast’s unofficial vocal coach for “Come On Eileen.” Later, VFX supervisor Tom Mahoney discusses the making of the episode’s telepathy universe, the complicated multiverse chase, and how the centaurs seen in the following episode were personalized using the cast’s real-life pets.

Director Jonathan Frakes joins hosts Wil Wheaton and Felicia Day on the Stuart Fails to Save the Universe Official Podcast to discuss “Spoiler: Corn Is Delicious”. Frakes reveals how the episode’s cow universe found its grossly comic tone, why the endless-void sequence had to be rebuilt and reshot, and how Kevin Sussman’s scenes with Stuart Prime were brought to life. He also reflects on directing Kunal Nayyar as a doomsday prophet, while Felicia and Wil share their theories about Stuart Prime.