The animated spin-off of "The Boys" subtitled "Diabolical" is officially canceled after one season. This was announced by the creator of the original show, Eric Kripke, in an interview with The Wrap, noting that Amazon did not give the project the "green light" for a sequel.
I don’t think "Diabolical" is coming back. Not because we didn’t try. It just didn’t have the viewership that justified it. We love the show, and Simon Racioppa, the showrunner, would happily do another season, but there isn’t the decision to do it.
"The Boys Presents: Diabolical" became the first spin-off of the universe, presenting an anthology of short animated stories, each of which was made in its own visual style.
Meanwhile, the main series "The Boys" will soon come to its conclusion: the fifth season will be the final one and will be released on Amazon Prime Video in 2026. According to Kripke, viewers will see a full-scale war between the Supes and Butcher's team.