Yon-Rogg is a character appearing in American comic books published by Marvel Comics. Created by Stan Lee and Gene Colan, the character first appeared in Marvel Super Heroes #12. Yon-Rogg is a military commander of the Kree alien race who was sent to Earth on behalf of the Supreme Intelligence, in order to promote Kree genetic superiority. The character is a foe of Carol Danvers and was indirectly responsible for her transformation into Ms. Marvel.

The Kree, briefly known as the Ruul, are an alien race appearing in American comic books published by Marvel Comics. They are native to the planet Hala in the Large Magellanic Cloud, and have a scientifically and technologically advanced militaristic society.