Great Thaedus (Peter Cullen), Oliver Grayson (Christian Convery), Omni-Man (JK Simmons), Battle Beast (Michael Dorn) - ...

Mark Grayson returns in March 2026 as Invincible Season 4. Check the episode schedule here.

That said, the character (voiced by actor Clancy Brown) was well-loved by viewers, to the point that Robert Kirkman told SFX ...

“While the world recovers from catastrophe, a changed Mark fights to protect his home and the people he loves, setting him on a collision course with a threat that could alter the fate of humanity ...