–Dodge explaining why she created her personas
The Identity Key is a powerful key used primarily by Dodge to change her appearance.
History[]
Tyler and Kinsey first see Rendell Locke and Duncan Locke using the key in one of Duncan's memories when they find them using the Plant Key.[1]
It would later be used by Dodge when Ellie Whedon summon Lucas' Echo to change her appearance to that of a female. Dodge uses the key multiple times after this to change her appearance between that of Lucas, the woman, and Gabe.
When she finally has the Crown of Shadows, Dodge uses the Identity Key to change Ellie's appearance into that of her female appearance, thereby giving the illusion that Ellie is Dodge. This causes the Keepers of the Keys to throw Ellie through the Black Door instead of her.[2]
Dodge subsequently keeps using the Identity Key to switch between her forms as Dodge and Gabe, albeit infrequently.[3] After Dodge is finally killed with the Alpha Key, the real Lucas returns the Identity Key to the Lockes. Having escaped from the Black Door, Ellie uses it to transform herself back to normal. A week later, Tyler leaves the key with Kinsey before departing on a road trip.[4]
When Bode accidentally time travels back to the day that Dodge had forced Duncan to create the Demon Key for her, he encounters the demon in the form of Gabe. Dodge, complaining about Gabe's form, uses the Identity Key to change back into her form as Dodge.[5]
After the defeat of Frederick Gideon, the Lockes toss all of the keys into his portal in order to close it.[6]
Uses[]

Beginning of a standard transformation.

End of a standard transformation.
The Identity Key allows the user to change their appearance to any unique form they wish when inserted into the bottom of their chin. They can change all aspects of their identity, including gender, look, and clothing. The key can also be used forcefully on somebody else to change their appearance.[2]
The same form can be used more than once, for example, when Dodge used the key to transform Ellie into a mirror image of her assumed form.[2] The only drawback to using the key is that the Identity Key cannot turn its user into a person who already exists, and that if the key gets lost or stolen, they'll be in their made-up form forever. This is proven as Dodge could project green skin and black eyes with just her willpower, but when she turned into Lucas, she had to pull out the Identity Key at all in order to do so.[7][3][8][9]
Trivia[]
- The Identity Key strongly resembles the Skin Key from the graphic novels, only smaller and no mirror in the bow.
- It shares its powers with the Skin Key and the Gender Key.
- Along with the Matchstick Key and the Mirror Key, the Identity Key was made specifically for the Netflix adaptation; it was not a key previously from the graphic novels, nor has it been mentioned there. However,
References[]
- ↑ Locke & Key, Episode 5: Family Tree
- ↑ 2.0 2.1 2.2 Locke & Key, Episode 10: Crown of Shadows
- ↑ 3.0 3.1 Locke & Key, Season 2 Episode 1: The Premiere
- ↑ Locke & Key, Season 2 Episode 10: Cliffhanger
- ↑ Locke & Key, Season 3 Episode 3: Five Minutes Past
- ↑ Locke & Key, Season 3 Episode 8: Farewell
- ↑ Locke & Key showrunners Carlton Cuse and Meredith Averill explain that finale twist, answer burning questions
- ↑ Locke & Key, Episode 8: Ray of F*cking Sunshine
- ↑ Locke & Key, Season 2 Episode 3: Small World