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Amazon Prime Video has revealed major details for Invincible season 4, including the introduction of a new, formidable villain.

Thragg, the ruthless Grand Regent of the Viltrum Empire, will be the main antagonist of the upcoming season. The character will be voiced by actor Lee Pace, known for playing Ronan the Accuser in Marvel’s Guardians of the Galaxy films.

Amazon describes Thragg as a leader who rules through strength and cruelty, fully committed to restoring the Viltrum Empire to its former glory.

As the most powerful Viltrumite and current Grand Regent, Thragg took control following the death of the first Emperor and aims to expand the empire’s influence across the universe. His arrival in the series is expected to add serious intensity and stakes for Mark Grayson and his allies.

The streamer also dropped the first trailer for the new season at the Invincible panel during New York Comic-Con.

The preview, set at the series’ fan-favorite Burger Mart, shows Mark and Atom Eve sitting in a diner booth while chaos erupts around them. In the middle of the action, Mark reflects on his previous battles, joking, “Can you believe people used to complain that I could never win a fight?” and ends the trailer with the line, “Season 4 is nuts!”

Welcome back to Burger Mart! Please enjoy a hot BM along with an update on Season 4 of… pic.twitter.com/3vDrLFsKS7

— INVINCIBLE (@InvincibleHQ) October 10, 2025

Season 4 is officially scheduled to premiere on Amazon Prime Video in March 2026. With the addition of Thragg and the return of the show’s signature mix of action, humor, and drama, expectations are high for the next chapter of the popular animated series.


Introducing Thragg as the main villain adds a huge new layer to Invincible. Lee Pace’s voice could give the character the perfect mix of menace and authority. After the success of the previous seasons, this new storyline looks like it’s going to raise the stakes even higher.

Are you excited to see Thragg in action and Invincible season 4? Share your thoughts in the comments.