- Publisher Hop: Angela does this twice: Neil Gaiman was awarded the full publishing rights to the character after a long legal dispute with co-creator Todd McFarlane. Gaiman eventually signed on to Marvel, and she was brought into the Marvel Universe during the finale of the "Age of Ultron" event. Following the Age of Ultron, Marvel Comics purchased the character wholesale from Gaiman, and has made her a member of the Guardians of the Galaxy.
- Screwed by the Lawyers: Something of a running gag with Todd McFarlane and Spawn.
- McFarlane was sued by NHL player Anthony Rory Twist over the mobster Tony Twist, who McFarlane had admitted was named after him. In 2004 McFarlane was found guilty of having profited on Twist's likeness and eventually settled out of court.
- McFarlane's habit of claiming sole ownership over the characters he co-created - dating back to his work on Venom - has gotten him into a lot of trouble with Neil Gaiman, who wrote the stories that introduced the key characters Angela, Cogliostro, and Medieval Spawn in 1993. This resulted in an arduous legal battle that lasted until 2004, where a court hearing granted them joint ownership. Gaiman later returned to court over expies of Medieval Spawn and Angela and McFarlane's use of Miracleman, and it was ultimately decided that Gaiman would get Angela - eventually selling her to Marvel Comics in 2013 - and McFarlane would get Medieval Spawn and Cog.
- McFarlane claimed he had gotten the rights to Miracleman when he purchased Eclipse's creative assets in 1996, and introduced the character into Spawn as a cosmic entity called the "Man Of Miracles/Mother of Creation. In 2001, Gaiman launched a second lawsuit against McFarlane to get ownership of the character back, and in 2009 Marvel purchased the character from his original creator, Mick Anglo. In 2015, Spawn underwent a Continuity Reboot that retconned Miracleman out of the comic.
The animated series:
- Hey, It's That Voice!:
- Actor Allusion: "...start the Apocalypse now!", said to Martin Sheen.
- Billing Displacement: John Leguizamo gets top billing over Michael Jai White.
- Hey, It's That Voice!: Malebolgia is Frank Welker. (As if he'd miss out on a voice acting opportunity.)
- What Could Have Been: Alex Proyas was supposed to direct the film. He chose Dark City instead
- Iced Earth, who did a concept album about Spawn, were offered a place in the soundtrack.