Invincible (Steven Yeun)

Mark Grayson is the Viltrumite/Human hero, Invincible and son of Nolan Grayson / Omni-Man.

A Viltrumite-human by birth, Mark develops his superpowers sometime following his seventeenth birthday and begins training to become his own hero under his father's wing. After a brief stint with the Teen Team, Mark works with Samantha Eve Wilkins / Atom Eve and the second iteration of the Guardians of the Globe to protect Earth from domestic and extra-terrestrial attacks.