Helstrom is an American television series created by Paul Zbyszewski for the streaming service Hulu, based on the Marvel Comics characters Daimon and Satana Hellstrom.

Tom Austen and Sydney Lemmon respectively star as Daimon and Ana Helstrom, the children of a powerful serial killer, who hunt the worst of humanity.

It was met with largely negative reviews, feeling the characters and plot were uninteresting, though the series' visual effects were considered impressive.

[1][5] Marvel Television and ABC Signature Studios were set to co-produce Helstrom alongside Lone Lemon Entertainment.

[14] Marvel announced the series' cast at the start of production in October 2019: Tom Austen and Sydney Lemmon star as Daimon and Ana Helstrom, with Elizabeth Marvel as their mother Victoria, Robert Wisdom as Caretaker, June Carryl as Dr. Louise Hastings, Ariana Guerra as Gabriella Rosetti, and Alain Uy as Chris Yen.

[2] Daniel Cudmore and David Meunier were cast in the recurring roles as Nurse Keith Spivey and Finn Miller, respectively in November.

[22] Zbyszewski called it "freeing" not being a part of the MCU or its main continuity, instead "hav[ing] just this little pocket of the universe",[23] and said Easter eggs in the series teased plans for the Adventure into Fear franchise before it was canceled.

[25] Hulu released the first 10 minutes of the series at the New York Comic Con online panel held in early October.

As well, Helstrom "doesn't much resemble a superhero story, and aside from an occasional swear word and a bit of blood, it could be a mid-level CW supernatural drama about photogenic people going after standard-issue demons."

He enjoyed Lemmon as Ana Helstrom, since she was "more charismatic than Daimon" and "the most prominent LGBTQ character in any Marvel TV series to date", but he was disappointed she would not become a fully realized version of her comic counterpart.

Because the series was once meant to be part of the planned Adventure into Fear, Bell concluded that Helstrom is "in an uninspired middle ground, and it seems likely to end up as nothing more than a footnote in the history of the MCU".