Zeus, the king of the gods, possessed the power to transform himself into various forms, including animals and humans.

Metamorphmagi are witches or wizards with the innate ability to change their physical appearance at will, without the use of spells or potions.

Werewolves are legendary creatures that are said to undergo a transformation from human to wolf during the full moon.

Gregor Samsa, the protagonist of Kafka's novella, wakes up one morning to find himself transformed into a giant insect, specifically a cockroach.

Mystique is a mutant with the power to change her appearance and mimic other people's forms.

Jaqen H'ghar is a mysterious assassin who possesses the ability to change his face and appearance.

Percy Jackson, the protagonist of the series, is a demigod with the power to control water and transform into a dolphin.

Sirens are mythical creatures that lure sailors to their deaths with their enchanting songs and ability to transform into beautiful women.

Beast Boy, also known as Garfield Logan, has the power to transform into any animal he can think of.

Dorian Gray, the protagonist of the novel, sells his soul to the devil in exchange for eternal youth and beauty.

The Asset, an amphibian creature, is captured and brought to a government laboratory, where it forms a bond with a mute janitor named Elisa Esposito.

Yennefer of Vengerberg is a powerful sorceress who possesses the ability to shapeshift and transform her appearance.

Dr. Moreau creates beast-men, creatures that are a combination of human and animal, through vivisection and genetic engineering.

The Shimmer is an alien entity that creates a quarantined zone, transforming the environment and its inhabitants in strange and dangerous ways.

Scott McCall is a high school student who is bitten by a werewolf and becomes one himself.