It is unknown which, if any, of the named characters this note refers to; Notably, the only other character with green text is Randice, who's name is shown in green on the note at the entrance of Even Care, albeit with an inverted gradient of light to dark green from that of "You". This character could possibly be Marvin as when he murdered Tiara, he wanted her back. Care has no eyebrows, and neither did Tiara.
This sounds decidedly as though it is not referring to "you" literally, but rather another entity from a first-person point of view.
It is perhaps negligible but present throughout the videos in YouTube auto-captions, (YOU) appears during the silent parts of the videos. While this can be excused as a glitch/error in the auto-captions there is the possibility it is gamed to produce it.
|Amber • Pen • Randice • Roneth • Toneth • Wavey|
|Care • Michael Hammond • Tiara/Belle|
|Green Man (Paul) • The Gift Plane Staff • "I" • Marvin • Mystery Man (Fan Name) • Newmaker • Quitter • Pyramid Head (fan name) • Shadow Monster Man • Tool • "You" (As Mentioned in Game) • Wife|
|Paul (Narrator) • "You" (As Mentioned by Narrator) • Rainer • Proprietors|