Seemings are labels for changelings who have undergone similar transformations while being held prisoner in the Faerie realm. It is largely a reflection of the experiences and environment the Lost was held in before escaping.  Changelings who share a Seeming often share not only physical traits, but psychological and emotional ones as well; they have shared common experiences of Faerie, and were often captured by or drawn to their Keepers in similar ways.
Each seeming comes with a particular blessing and curse, and their respective Kiths add an additional blessing to the mix. Within each seeming there exists a variety of kiths, which are a way to more carefully define the Changeling's fae nature.
Changelings share very specific similarities beyond those of their Seeming. While their supernatural changes might be similar, however, Changelings of the same Seeming, or even the same Kith, may have radically different Miens.
There are seven Seemings recognised by Changelings:
- Beasts are changelings who were used or treated as animals during their captivity. They take on some part of an animal's nature and appearance, bestial sensation and instinct ever struggling for dominance with human thought and reason. 
- Darkling changelings have been imbued with the darkness of Faerie, embodying shadow and stealth, fear and deception. Spawned of darkness, their magic fades in the light of day.  
- Elementals were used as inanimate objects or forces of nature during their captivity. When they return to the mortal realm, they retain power over the elements they once belonged to, but find that humanity has become alien to them. 
- Fairest embody grace and power, beauty and cruelty, able to enchant and beguile those around them.  
- Grimm changelings are attuned to the stories told by humanity. In order to remain safe from the Others' predations, they embody the roles within those stories.
- Ogres are creatures of great strength and prowess, hardened and brutalised by the tortures and abuses they endured at their masters' hands.  
- Wizened have lost something of themselves to Faerie. Reduced in body and/or mind, made smaller than they were, they have turned bitter and spiteful. Their withered appearance, however, conceals inhuman agility and dexterity.  
- ↑ CTL: Preview: Seemings (Part 1)
- ↑ CTL: Preview: Seemings (Part 2)
- ↑ CTL: Preview: Beasts (Part 2)
- ↑ 4.0 4.1 4.2 CTL: Changeling: The Lost Demo, posted June 27, 2007
- ↑ CTL: Preview: Darklings (Part 2)
- ↑ CTL: Preview: Elementals (Part 2)
- ↑ CTL: Preview: Fairest (Part 2)
- ↑ CTL: Preview: Fairest (Part 3)
- ↑ Dark Eras, p. 414-415
- ↑ CTL: Preview: Ogres (Part 1)
- ↑ CTL: Preview: Wizened (Part 2)