Captain Marvel: 12 Major Characters From The Comics You Need To Know

The prettier, more well-loved brother of Thanos (yes, Thanos), Starfox was an Eternal with the psionic ability to make people feel good around him.

For the most part, he was a carefree, flirtatious libertine, which earned him his name (Eros), until Thanos' eventual campaigns forced him to take responsibility and oppose his powerful brother.

Teaming up with Mar-Vell and fighting alongside survivors of their planet Titan, Eros would eventually help the Avengers defeat his brother. He and Mar-Vell became close friends, and when Mar-Vell was battling cancer, Eros spent time with him in his final days on Titan. Mar-Vell trusted him to look after his lover Elysius when he died, and Eros looked after Elysius until she released him from his duties.

He would later join the Avengers for a brief stint, receiving the name Starfox from Janet Van Dyne. Though mostly heroic, Starfox was more interested in his wanderings than anything else.