Stacy

People keep arguing whether Chat Noir is Adrien's true self or it's Cat Walker.

Also, remember that breakdown Marinette had, when for an episode she found out Chat Noir's identify and was frustrated that he and Adrien wasn't the same person?

I think, Adrien (as we know him) and Cat Walker are the same. No, hear me out. As we know him. As Marinette sees him. As his father raised him: perfect, obedient, polite, careful.

You know why Chat Noir's so different? I think, it's what Adrien would've been if he was raised by his mother. We know little about her, but I imagine that she's all happy, cheerful sunbeam that brings love in this world. Chat Noir is Adrien's mother side: warm, witty, kind, caring.