List of Cosmere Shapeshifters[edit]

Physical change through unknown power, possibly inherent[edit]

Dragon (cosmere) - can appear human and possibly other forms as well
Sleepless (Dysian Aimian) - passable but easy to spot on close inspection (hordelings)
Siah Aimians - possibly limited, related to cognitive realm (shadows)?

Dakhor - see Dilaf
Elantrians - sort of, but they are generally still recognizable, even during the Shaod or away from Sel (see ^[1] and ^[2])
- Members of the Ire do not age at the normal rate^[3] and can become so old that they no longer appear to be normal humans.

Kandra - Hemalurgy - appearance will vary depending on bones used (can be human/animal/etc.)
Returned - when they come back, they look totally different; after that they can change appearance but not total shapeshifting
- It seems that some non-Returned can do this possibly with enough Breath or training, see Vivenna or this wob^[4]
- Royal Locks - hair only
Forgery via Essence Marks - user may still be recognizable unless the Forger is incredibly skilled
Feruchemy can store a large amount of youth in an atiummind, enough to change the person's appearance to a much younger version of themselves (particularly if Compounding is involved, see The Lord Ruler or Marsh). Additionally, tapping a large amount of strength stored in a pewtermind will cause a Feruchemist's muscles to physically grow much larger. Aluminum could also have a physical effect.
Aethers include a physical manifestation, but it's not really canonized

Lightweaving, possibly through different types of Investiture
- Order of Lightweavers uses Surgebinding, e.g. Shallan; this is not limited to themselves
- Order of Truthwatchers also have Surge of Illumination but has not been used on-screen
- Hoid uses a version that originated on Yolen
- The mavset-im Fused can use the Surge of Illumination through Voidbinding

Spren - ability to change shape and appear near-human varies widely by spren type (and Nahel bond)
- Unmade - similar to above, depends on which one
Thunderclasts animate stone to take physical form; how much they can control their appearance is unclear
Seons change shape while communicating, and have other similarities to spren which would likely allow shapeshifting; Skaze may also have a variation of this ability
Shards can appear to humans in different forms
Speculatively, other potential God characters such as Adonalsium or the God Beyond could take different forms in the Physical Realm

Listeners, particularly Regals, can take different Forms but are still identifiable. Fused possess other listeners and this usually changes their appearance
Numerous characters are simply good at disguise, such as Kliss, Wayne, and Liss
Svrakiss are thought to be able to possess other individuals
Members of the Seventeenth Shard slow their aging through an unknown method, which would influence their "natural" appearance^[5]