Len Wein co-created Swamp Thing early in a writing career that has included work on every major hero and villain at both DC Comics and Marvel Comics.

As a writer, Wein is also credited with co-creating Wolverine for Marvel and Lucius Fox for DC. Wein was one of the editors on Watchmen, and has also been Editor-in-Chief at both Marvel Comics and Disney Comics before settling in to a successful career writing comic books and animation. He died in 2017 at the age of 69.

Bernie Wrightson (1948–2017) was a comics illustrator and horror artist best known for cocreating Swamp Thing and his adaptation of the novel Frankenstein, both featuring his trademark intricate inking. He worked on Spider-Man, Batman, and The Punisher, among many others, as well as works including Frankenstein Alive, Alive; Dead, She Said; The Ghoul; and Doc Macabre, all cocreated with esteemed horror author Steve Niles.

His bestselling collaborations with Stephen King on The Stand, The Dark Tower V: Wolves of the Calla, Creepshow, and Cycle of the Werewolf are considered fan favorites. As a conceptual artist, Bernie worked on many movies, particularly in the horror genre, including Ghostbusters, The Faculty, Galaxy Quest, Spider-Man, George Romero’s Land of the Dead, and Frank Darabont’s Stephen King film The Mist.