Xavin is a superhero appearing in American comic books published by Marvel Comics. The character is commonly depicted in association with the Runaways. Xavin is gender-fluid with seemingly no preference in which pronouns are used for them. They were created by author Brian K. Vaughan and artist Adrian Alphona, and debuted in Runaways #7. In the publications, Xavin is a Super-Skrull in training. Although Alphona was the series' artist at the time, artist Takeshi Miyazawa first drew the character on print. When Xavin first appeared to the Runaways, they took on the form of a black male, but changed into a black female just for the sake of Karolina Dean, a lesbian whom they were to marry. Xavin is often seen as a male, simply to be "intimidating". Xavin, often called "Xav" for short, is known for their obtuse and warlike personality. They had originally found it hard to fit in with the Runaways due in part to Xavin's constant gender switching and unfamiliarity with Earth values and norms though through proving their loyalty to the group found acceptance. Xavin is the child of the Skrull Prince De'zean.