Avengers: Infinity War can introduce these 10 characters

3. Eros

Eros, better known as Starfox in the comics, is an Eternal, an evolved race of humanity that was colonized on Saturn’s moon Titan.

He is also the brother of Thanos and may not play a part in the film but due to the fact he is tied to the Mad Titan is a plus and may even be a chance for the filmmakers to explore his background and more specifically his lineage.

Thanos has the status of an Eternal/Deviant hybrid, one of the most powerful of his kind. Adding Eros to the MCU would provide a dynamic equal to the relationship between Thor Odison and Loki Laufeyson, especially as part of his sole motivation.

In the comics, Thanos’ mother had tried to kill him at birth as it was implied to be due to his physical appearance. Eros knows a lot more about Thanos than perhaps Gamora and Nebula.

If they were to add Eros in Infinity War, this would have to be during flashbacks and would lean a bit further away from the source material.