As revealed in the 2023 Insomniac Games ransomware data leak, Jean Grey was originally planned to be a playable character, using her telepathic abilities to engage in combat for about five missions in the game. Following the leak, Insomniac decided to more closely focus on Wolverine as the only playable character, but would keep her presence for the "team vibe". It has been speculated that the developers grew cold feet about having a second playable character due to the poor reception of Mary Jane's stealth sections in Marvel's Spider-Man and Marvel's Spider-Man 2.