Accompanying Fisk is his wife, the mutant Typhoid Mary, and a legion of masked knights of the Hellfire Club.

Source: https://comicbook.com/comics/news/amazing-spider-man-40-recap-gang-war-wilson-fisk-kingpin-returns/

Moreover, apart from Eddie Munson and Vecna, Tudum reported that the newest update also includes new Hellfire Club campaigns, with 's Lady Applejack variant arriving soon.

Source: https://collider.com/stranger-things-puzzle-tales-eddie-munson/

Needless to say, there are countless stories about what went on at the Hellfire Club, and it's likely that we'll never actually know which are truth, which are fiction, and which are a little bit of both.

Source: https://www.irishcentral.com/travel/irelands-scariest-destination-hellfire-club

The story of the Hellfire Club has been a compelling one, especially as they stumble across every supernatural mystery in Hawkins.

Source: https://screenrant.com/stranger-things-ending-good-why-david-harbour-response/