|Starting location:||Janitor's Closet|
|First appearance:||Night 5|
The Rat is a unofficial antagonist in Five Nights at Treasure Island.
The Rat appears to be a Mickey suit, but without ears, legs, and eyes, as well as a dirty face and gloves.
He starts in the Janitor's Closet, offscreen. He will then get up, and go to the Bathroom, Meat Freezer, Lounge, and then the Office. The player must shut off the power to survive. When active, he can say the following things:
- "Why are you still here?"
- "Get out or die."
- "You can't."
- "They should never have hired you."
Through time, The Rat's apperance changed a lot.