Thragg Is Coming: Invincible Season 4 Drops Three Episodes on Prime Video This Wednesday

Mark Grayson is back. Two days from now — at midnight Pacific Time on Wednesday March 18 — Prime Video drops the first three episodes of Invincible Season 4 simultaneously, kicking off what is shaping up to be the most ambitious, most brutal, and most cosmically expansive season of one of the best animated series currently running anywhere in television. The show's fourth year adapts the Viltrumite War — the climactic event of Robert Kirkman's original comic book run, a galaxy-spanning conflict between the Coalition of Planets and the Viltrum Empire that represents the story's most operatically scaled confrontation. After three seasons of building the world, the characters, and the mythology, Season 4 is where Invincible finally arrives at the reckoning it has been promising since the show's first frame. And at the centre of that reckoning stands a character fans have been waiting years to see on screen: Thragg, Grand Regent of the Viltrum Empire, voiced by Lee Pace. The Premiere Format: Three Episodes Wednesday, Weekly Until April 22 Prime Video has adopted the same premiere format for Invincible Season 4 that it used for Seasons 2 and 3 — a triple-episode opening drop that gives audiences enough story to get properly invested before transitioning to a weekly release cadence. Episodes 1, 2, and 3 all arrive at 12:00 AM Pacific Time on Wednesday March 18 — that is 3:00 AM Eastern, 7:00 AM GMT, 8:00 AM CET, 12:30 PM IST, and 3:00 PM AEST. From there, the schedule runs weekly every Wednesday: Episode 4 on March 25, Episode 5 on April 1, Episode 6 on April 8, Episode 7 on April 15, and the Season 4 finale — Episode 8 — on April 22. Eight episodes total. Five weeks of weekly releases after the opening triple drop. The season is available exclusively on Prime Video in more than 240 countries — meaning Wednesday morning is a genuinely global event for the show's enormous fanbase. Thragg: Lee Pace, Grand Regent, the Show's Most Dangerous Villain Yet Every season of Invincible has introduced a villain who recalibrated fans' understanding of how dangerous the show's universe could be. Season 1 had Omni-Man. Season 2 had Conquest. Season 3 had the Invincible War. Season 4 has Thragg — and if the comics are any guide, he makes all of them look manageable by comparison. Grand Regent Thragg leads the Viltrum Empire as its supreme military and political authority — trained from birth for the role, ruling through strength, cruelty, and absolute will, determined to restore Viltrum to its former glory at any cost to any civilisation that stands in his way. Lee Pace — best known for playing Ronan the Accuser in the Marvel Cinematic Universe and Halcyon in Foundation — voices Thragg, and the first teaser trailer confirmed he will make his debut in Episode 2. The official full trailer, released in January 2026, teases a shock reunion between Mark and his father Omni-Man on Earth alongside the first glimpses of the galactic coalition assembling to face the Viltrumite threat — Guardians, Coalition members, and allies whose survival is far from guaranteed against an empire whose warriors are literally bred for combat from childhood. What Else to Expect: Atom Eve's Powers, Darkblood's Hell & New Villains Beyond the Viltrumite War's galactic scale, Season 4 has confirmed several major storylines that expand the show's emotional and narrative range. Atom Eve — one of the series' most beloved characters — is losing her powers, a development the official trailer teases with the kind of quiet devastation that Invincible handles better than almost any other superhero property currently airing. The show will also introduce Dinosaurus and Universa as additional antagonists alongside Thragg — two characters whose comics appearances are among the run's most memorable. And in a storyline confirmed to be entirely original to the TV adaptation — not adapted from the comics — Robert Kirkman himself wrote Episode 4, which features the return of Damien Darkblood and a Hell-set narrative that Kirkman described as something he had always wanted to explore with the character but never had the format to execute in print. As digital8hub.com has reported, Amazon also this week launched Health AI on its main platform and acquired Moltbook for Meta Superintelligence Labs — meaning Prime Video's most anticipated animated premiere of the year arrives on a platform whose parent company has had one of its busiest technology weeks in recent memory. Season 5 of Invincible has already been confirmed by Amazon MGM Studios — meaning Wednesday's premiere arrives with the security of knowing the story will continue beyond whatever Season 4 delivers. For the latest entertainment coverage and streaming news, follow digital8hub.com. Full Episode Release Schedule: Episodes 1-3: Wednesday March 18, 2026 — midnight PT Episode 4: Wednesday March 25 Episode 5: Wednesday April 1 Episode 6: Wednesday April 8 Episode 7: Wednesday April 15 Episode 8 (Finale): Wednesday April 22