The Princess is the playable protagonist in the minigame Princess Quest, playable in the mobile edition of FNaF: Help Wanted and Princess Quest 2, Princess Quest 3, playable in Five Nights at Freddy's: Security Breach.
Being a simple sprite, the Princess does not have a very complex appearance. Her sprite is entirely made up of lighter yellow colors. She wears a dress that goes down right below her knees and a small crown atop her long hair. Finally, she carries around a small lantern that glows orange.
The Princess can be controlled by the player. When walking into unlit torches along the map, they will light up from her lantern. When interacting with a chest, she will pick up what's inside it. When interacting with the purple door at the end, she can only unlock it if she has acquired the key for said door.
The Princess starts with three hearts, but she can find hearts in chests to refill and extend her health bar.
At the end of the game when encountering a large blob-like creature, she along with the environment and the creature will slowly be pixelated more and more until the screen goes black and the player is sent back to the title screen of the main game.
Later in the Princess Quest 2, she apparently survived the encounter of the creature, and acquire a weapon called 'Sword of Light', which she uses to cut enemies in half, light her surroundings, and light unlit torches. She can also create a shadow clone of herself in a few sections to do inverted mimics of her actions.
Finally, in Princess Quest 3, she searches through an abandoned Freddy's location for a Glitchtrap Plushie, Vanny's mask and the door from Help Wanted's ending. At the end of the game, a mysterious scream can be heard. it is not clear that whose scream is this.
- The Princess is one of the only new characters to be introduced in the mobile port of FNaF: Help Wanted.
- The others are the three Glitchtrap entities.
- The Princess is the only human protagonist in the series that gets to wield a lethal weapon, and defeated her enemies with direct method.
- The Princess' name in the files, Cassidy, was changed to just Princess in v1.05 of Security Breach.