The Mirror Shows Your True Self in Western Animation.
- Aladdin: The Series: Al has to find a mirror like this in a room full of magic mirrors which all show something different. He finds it when he notices that his reflection is wearing his "street rat" clothes instead of the princely robes he has on. Then Iago sets off the trap because he thinks the mirror that depicts himself covered in jewelry must be the one.
- Batman: The Animated Series: In "Baby-Doll", the main antagonist suffers from a condition that kept her from aging. Despite being well over 30, she physically looks younger than a pre-teen. When the Dark Knight chases her into a house of mirrors, she stumbles across one that reflects what she would look like under "normal" circumstances.
- Elena of Avalor: When Carla Delgado is turned into a peasant girl by Shuriki, mirrors will still reflect her real form; thus, she has to avoid mirrors and anything reflective to avoid being caught.
- Gravity Falls: In "Soos and the Real Girl", while Giffany possesses an animatronic beaver, her true self appears on the screens of arcade machines when she walks past them.
- Jackie Chan Adventures: In season 2, whenever Shendu possesses someone, his host can see his face in the mirror.
- Justice League: In "Paradise Lost", when Wonder Woman and Superman find an Ancient Artifact, they start seeing each other as monsters and fighting, thinking that the "monster" had done something to their friend. Superman is the first to catch on upon seeing Wonder Woman's reflection in a fountain and stops fighting altogether, allowing Diana, still seeing him as the monster, to mercilessly pummel him. It's not until the "monster" points to a mirror that she looks and sees she was fighting Supes all along.
- The Legend of Zelda (1989): In "Dopplelganger", Ganon uses a magic mirror to kidnap Zelda and replace her with an Evil Twin that would try to trick Link into giving up the Triforce of Wisdom. However, Link is able to learn early on that he is not with the real Zelda when, as the two ride their horses past a body of water, he notices that Zelda's reflection is missing.
- Pepper Ann: In "My Mother, Myself", Pepper Ann and her mother experience a "Freaky Friday" Flip, and P.A.-as-Lydia sees a reflection of her normal self (who talks to her very often, by the way).
- The Pirates of Dark Water: In one episode, Bloth used a magical artifact to swap bodies with Ren, as well as having Konk swap bodies with Niddler. However, while in the other person's body, their reflection still shows who they really are.
- Samurai Jack: In "Jack and Swamp Monster", Aku disguises himself as a hermit so Jack can lead him to the gems and armour of Cronos which he will use to destroy Jack. As they're rafting down the river Aku looks into the water and sees his normal form reflected in the water, so he summons a giant hovering alligator as their transport so Jack won't see it. It didn't matter anyway, because Aku's Paper-Thin Disguise never fooled Jack in the first place.
- The Simpsons: In "Brick Like Me", LEGO Homer starts seeing the real Homer in reflective surfaces after having a vision of his reality, where he was bonding with Lisa over LEGO construction sets. At one point, he yells at his reflection on the front window of the LEGO world's Kwik-E-Mart, causing him to be Mistaken for Racist by LEGO Apu.
- Steven Universe:
- In "Storm in the Room", Steven enters Rose's room and asks to see his mother, who appears. Eventually, he takes out his phone to take a picture of them together, but the screen shows him standing alone in a black void, reminding him that she (and everything else in the room) is simply a construct drawn from his own mind.
- In "Jungle Moon", Stevonnie camps out in a long-abandoned Diamond base and dreams of a scene that took place there when it was still in use. Stevonnie plays the role of Pink Diamond, which is revealed when they view their own reflection in a glass window.
- Teen Titans (2003): In "Mother Mae-Eye", the eponymous witch's true form can be briefly seen reflected in Robin's mirror early in the episode when she comes to fix his hair.
- ThunderCats (1985): When Mumm-Ra is powered-up, mirrors and reflective surfaces show him as the old, wizened mummy that is his base form, depowering him and causing him to have to flee to his pyramid. Unfortunately, at the beginning of Season 4, the ThunderCats tick off the Ancient Spirits of Evil so much that the Spirits not only rebuild Mumm-Ra's destroyed pyramid, they also power him up so that reflections show his battle or wizened form as appropriate, and he is no longer depowered by seeing his reflection.
- Trollz: Reflections show the true forms behind magical disguises, including mirrors and reflections in water.
