Yondu is a fictional character from the Marvel Comics universe, primarily known for his role in the Guardians of the Galaxy series. He is depicted as a blue-skinned alien with a distinctive fin on his head and is a member of the Yaka species. Yondu is often portrayed as a skilled archer, using a special arrow that he can control through whistling. In the Marvel Cinematic Universe, Yondu is played by actor Michael Rooker. He serves as a father figure to Peter Quill, also known as Star-Lord, and is the leader of the Ravagers, a group of space pirates. His character evolves from an antagonist to a more complex hero throughout the films.