Sprite

Sprite is a fictional character appearing in American comic books published by Marvel Comics. The character first appeared in The Eternals #9 (March 1977), and was created by Jack Kirby. Although physically a child, Sprite is an Eternal, a member of an ancient and extremely powerful immortal race, who is commonly depicted as a mischievous trickster figure. Sprite has been portrayed as both a supervillain and an amnesiac antihero. The character has been depicted as alternatively male and female.
Lia McHugh will portray Sprite in the Marvel Cinematic Universe film Eternals (2021).