The number of Marvel comic heroes is constantly changing and growing. As of now, there are well over 8000 characters, but new ones are always being introduced.
Hela is a major villain in the Marvel Comics universe. She's the daughter of Loki and has the ability to control the undead. Her powers are quite formidable and she poses a significant threat to the heroes.
Oh, yes! Marvel is not just a comic book series; it's a huge universe of comics with countless heroes, villains, and epic adventures. The series has grown and evolved over time, becoming a cultural phenomenon.
Krull was not a Marvel comic book. It had its own standalone story and creative background separate from Marvel's comic book lineup. Marvel has a vast range of characters and titles, but Krull wasn't among them.