Diablo Verde was a Mexican superhero and a member of The Vindicators who was mentioned in "Vindicators 3: The Return of Worldender". He was never seen, but he was mentioned to have died, along with Lady Katana and Calypso, in battle with Doom-Nomitron.
Although Diablo Verde never personally appears in the episode, an image of him could be seen in the mobile tablet Morty was holding in his bed. He appears as a large, muscular horned demon with green skin, a giant handlebar mustache, and several tattoos that resemble Maya or Inca iconography.
- His name means "Green Devil" in Spanish.
- He is a parody of El Diablo from Suicide Squad and Hulk from Marvel Comics.
- His tattoos resemble those of Drax from Guardians of the Galaxy.
- He also appears to be a parody of Hellboy and Blue Devil.