Werewolf

The werewolf is a human with the, at times involuntary, ability to shapeshift into either the form of a wolf, or a hybrid between man and wolf. While not exclusively, A full moon is is often the trigger for the transformation.

Source
Although the name varies from culture to culture, the oldest mentions of lycanthropy, dates back to 440 BC. with Herodotus' work Histories.

Media
Werewolves appear in the following media:

Games

 * Chronicle: RuneScape Legends
 * Hunger Dungeon
 * Sang-Froid: Tales of Werewolves
 * The Elder Scrolls - game series
 * The Witcher - game series.
 * Hunger Dungeon
 * Sang-Froid: Tales of Werewolves
 * The Elder Scrolls - game series
 * The Witcher - game series.
 * Sang-Froid: Tales of Werewolves
 * The Elder Scrolls - game series
 * The Witcher - game series.
 * Sang-Froid: Tales of Werewolves
 * The Elder Scrolls - game series
 * The Witcher - game series.
 * Sang-Froid: Tales of Werewolves
 * The Elder Scrolls - game series
 * The Witcher - game series.
 * Sang-Froid: Tales of Werewolves
 * The Elder Scrolls - game series
 * The Witcher - game series.
 * The Elder Scrolls - game series
 * The Witcher - game series.
 * The Witcher - game series.
 * The Witcher - game series.
 * The Witcher - game series.
 * The Witcher - game series.
 * The Witcher - game series.