As he indicated in this (very sexy and very shirtless) Instagram pic with Brandon Flynn and Timothy Granaderos — which he captioned, "First workout of the season with the #13ReasonsWhy GANG. Expect more of these" — Ross Butler is returning as Zach Dempsey. In the post, he also tagged Justin Prentice, Christian Lee Navarro, Miles Heizer, Alisha Boe, Dylan Minnette, Devin Druid, and Anne Winters. Though it's possible that we may learn more about his secret Summer romance with Hannah, it's not clear yet what season three will hold for his character.