Is luigi fake in super Mario 64?

In Super Mario 64, Luigi is not a playable character, leading to speculation and theories about his presence in the game. He appears in certain areas, notably in a hidden "L is real" message, which has fueled rumors that he was intended to be included as a character. However, the developers confirmed that Luigi was not part of the game, making him more of a fan myth than an actual character in Super Mario 64. Overall, Luigi's presence in the game is considered a playful Easter egg rather than a sign of him being a "fake" character.