Searxng/The Boys Season 5 tv TV Jared Padalecki's Mister Marathon cameo in The Boys Season 5 delivers comedy and chaos, plus a Supernatural reunion with Misha Collins. May 5, 2026 AceShowbiz - The Boys Season 5 features a brief yet memorable cameo from Jared Padalecki as Mister Marathon, delivering a comedic highlight in Episode 5, "One-Shots." Despite the character's seemingly definitive fate, the show leaves room for potential future appearances within the expanding franchise. The episode "One-Shots" adopts an anthology style, focusing on different characters and their stories.