Yes, Oliver Grayson dies in the Invincible comics. He is killed by Thragg after defying him. Oliver initially works with Thragg but ultimately sacrifices himself to save Mark, Atom Eve, and Terra.

The first three episodes of Invincible season 3 premiered on Amazon Prime Video on February 6, 2025, introducing fans to Oliver Grayson. As the younger half-brother of Mark Grayson, Oliver ...

Oliver Grayson’s Kid Omni-Man persona explained After Nolan was taken by the Viltrumites, Oliver was left in the care of his half-brother, Mark Grayson (Invincible), and stepmother, Deborah Grayson.