Yondu Udonta, or simply Yondu (/ˈjɒnduː/), is a character appearing in American comic books published by Marvel Comics. The original version of the character is depicted as the last survivor of his species in the 31st century, and is a founding member of the original Guardians of the Galaxy team from the Marvel Multiverse alternate reality known as Earth-691. Yondu in Earth-691 is depicted as a spiritual warrior who can control his killing arrows via sound waves, most commonly by whistling. Yondu joined Vance Astro and other survivors of the Badoon attack on the solar system in the 31st century who became known as the Guardians of the Galaxy. As part of the Guardians, Yondu traveled to present-day Earth and became an honorary member of the Avengers. In other media, Yondu has appeared in the Marvel Cinematic Universe, portrayed by Michael Rooker, and the Guardians of the Galaxy animated series, voiced by James Arnold Taylor. The former version is a cyborg and member of the Ravagers and was later incorporated into the comics continuity, depicted as the first Yondu's ancestor.