Marvel's Helstrom has been canceled by Hulu after just one season. While Marvel fans may be upset, the move isn't exactly surprising. Helstrom was developed and produced by the now-defunct Marvel Television, which is not part of Marvel Studios' exclusive TV deal with Disney+. Now that the show has been canceled, it leaves the upcoming animated series M.O.D.O.K. with Patton Oswalt as the last Marvel TV series outside of the Marvel Cinematic Universe on Hulu.

Helstrom was based on the Marvel comic titled Hellstrom, which focused on Damion Helstrom, aka the Son of Satan. In the series, Daimon and Ana Helstrom are the son and daughter of a mysterious and powerful serial killer. The siblings have a complicated dynamic as they track down the terrorizing worst of humanity, each with their attitude and skills.

Elizabeth Marvel starred as their mother, Victoria, who had been institutionalized for the last 20 years. The series also starred Ariana Guerra, Robert Wisdom, June Carryl, and Alain Uy. Marvel's Helstrom was executive produced by Paul Zbyszewski, who served as showrunner and Marvel's Jeph Loeb.

Helstrom was originally announced for Hulu last year, along with a Ghost Rider series, which was set to see Gabriel Luna reprise his role from Agents of S.H.I.E.L.D. However, the series never made it past the development stage, due to problems behind-the-scenes. In October 2019, Marvel TV moved under the umbrella of Marvel Studios and Kevin Feige, who became the chief creative officer across all of Marvel. Jeph Loeb later stepped down as head of Marvel TV and everything halted. As for whether any of the aforementioned characters show up in the MCU, that is unclear at the moment, but Marvel fans are holding out hope that they will, along with the Netflix characters.

Marvel Studios boss Kevin Feige recently took part in the Disney Investors Day presentation, where he laid out some more of the studio's plans for the future, while teasing projects that are currently in production. WandaVision will kick off the MCU Disney+ relationship early next year, along with The Falcon and the Winter Soldier. Both shows have completely different vibes, with Scarlett Witch and Vision living through the history of television, while Bucky and Falcon take on more of an action movie-type vibe. Loki has been described as a crime thriller, which spreads the MCU out even further into new genres.

In addition to The Falcon and the Winter Soldier, {WandaVision, and {15}, Marvel Studios is also releasing a Hawkeye series, She-Hulk, Secret Invasion, Armor Wars, Moon Knight, What If...?, Ironheart, Ms. Marvel, and more. Kevin Feige has noted numerous times that all of the upcoming shows will be connected to the big screen side of things. For instance, Ms. Marvel will be setting up Captain Marvel 2, while WandaVision will go on to set up Doctor Strange in the Multiverse of Madness. Deadline was the first to report on Hulu canceling Marvel's Helstrom.