Eric Kripke, the showrunner for 'The Boys' and creator for 'Supernatural' revealed that a cameo featuring CW's 'Supernatural' cast has been completed for season 5. "Jared, Jensen, and Misha are all in the same frame....storyline, and interacting with each other," he stated. Jensen Ackles will reprise his key role as 'Soldier Boy' while Jared and Misha's characters are under wraps.