Invincible Season 4 to Premiere in 2026, Introduces Villain Thragg

On October 11, 2025, Prime Video announced that the highly anticipated Season 4 of the adult-animated series Invincible will premiere in March 2026. The streamer also released a Burger Mart-inspired teaser trailer and revealed that acclaimed actor Lee Pace (Foundation, Bodies Bodies Bodies) will join the cast as the formidable character Thragg.

Thragg, the Grand Regent of the Viltrum Empire, is a powerful and cunning leader who rules his people through strength, cruelty, and sheer determination to restore his empire to its former glory. Trained from birth for this role, Thragg's arrival is set to pose a significant threat to the world that Invincible's protagonist, Mark, is fighting to protect.

The news comes as Invincible, based on the comic book series by Robert Kirkman, co-creator Cory Walker, and contributing creator Ryan Ottley, recently wrapped up its eight-episode third season in February. The series, which stars Steven Yeun, Sandra Oh, J.K. Simmons, and a talented ensemble cast, has also received an early renewal for a fifth season, further solidifying its place as a must-watch for fans of adult-animated content.