We learn Peter's best friend Ned Leeds has magical powers similar to Doctor Strange's in No Way Home. He's actually the one who opens a portal and accidentally causes Garfield's and Maguire's Spider-Men to cross over to their universe. According to Nerdist, in the comics, Ned becomes the apprentice of the sorcerer Baron Mordo, who is Doctor Strange's adversary. Mordo appears in the 2016 Doctor Strange movie and is set to return for the sequel, Doctor Strange in the Multiverse of Madness.