Yon-Rogg is a fictional character appearing in American comic books published by Marvel Comics. A military commander of the Kree alien race whose weaknesses are his jealousy of others' accomplishments and his love for the medic Una, he's dispatched to supervise Earth on behalf of the Supreme Intelligence. He is a foe of Captain Marvel, specifically the Carol Danvers version, and was indirectly responsible for her transformation into Ms. Marvel. Jude Law portrayed the character in the Marvel Cinematic Universe film Captain Marvel (2019).