7 Actors Who Left Prime Video's Invincible Series

While Disney+ does Marvel shows and HBO Max handles DC adaptations, Amazon's Prime Video has been carving out a nice little niche for itself with great versions of comics that don't come from the big two. First there was the live-action series "The Boys," followed by the animated show "Invincible." And considering both got to Season 4, a rarity for Prime Video originals, it's clear they have each found their audiences. As for how many seasons "Invincible" could have, according to creator Robert Kirkman, he says not to be surprised if it hits Season 7 at least.

"Invincible" has an absolutely massive cast of characters, especially when considering not just the regular and recurring players but the dozens of smaller characters that are only around for an episode or two. With that in mind, it's probably not surprising that it's a show in which stars are replaced and no one notices, since there are just so many actors to keep track of. Not including people whose character was killed or otherwise no longer active, here are the actors who have left the show so far — while playing a character whose arc hadn't finished — and who replaced them. 

While the character of William Francis Clockwell, Mark Grayson's best friend, didn't come out until several issues into the "Invincible" comics, the show made him openly gay right from the start. That decision was generally seen as a better handling of the character and his sexuality, making it a more fully-formed aspect of his personality rather than a twist mostly intended for shock value — especially after William had been prone to making homophobic jokes up to that point.

Andrew Rannells, best known for his work in live theater but also a prolific voice actor, played William in the first three seasons of "Invincible." However, fans noticed that William sounded much different in Season 4, and a peek at the end credits confirmed that he is now being played by Brandon Scott James from "Ghosts." Given that there was no big announcement regarding Rannells' exit from the show, it's been assumed that the very busy actor was simply unable to continue fitting "Invincible" into his schedule.

There are several major "Star Trek" actors you may have missed in "Invincible" Season 4, with Kate Mulgrew and LeVar Burton playing Domina and Tech Jacket's AI, respectively. Fellow "Star Trek" alum Michael Dorn also played the recurring character Thokk on the show, but he's thus far been absent in Season 4. Another "Trek" veteran might shown up in Season 4 as well, but that actor left after the end of the third season and his character is now being played by someone else.

Zachary Quinto, the Kelvin Timeline's version of Spock, had been the voice of Rudy Connors/Robot, while also sharing voice duties across the various "versions" of that character with both Ross Marquand and Jason Mantzoukas. It's very complicated to explain if you haven't already been watching the show and understand what we're talking about here — and if you're reading this, you likely have been and already do. But what's important is that, as of Season 4 of "Invincible," Marquand has fully taken over Quinto's split of the character.

To say that the cast of "Invincible" is full of incredible collective talent would be an understatement. In fact, not only does it include multiple Emmy and Oscar nominees, but two Oscar winners — and in the case of Mahershala Ali, he's a two-time Oscar winner to boot. In Season 1 of "Invincible," Ali played Titan, a crime boss who has the ability to create a layer of protective stone around his body that he can regenerate at will. But from Season 2 onwards, Ali was out, and "Teen Wolf" recurring star Todd Williams was in.

Looking at Ali's film output over the last few years, it's easy to assume that he's simply another actor who simply got too busy for "Invincible." It's also entirely possible he was making room to film that Blade movie that we all thought he was going to star in, but that has seemed to have fizzled out — so much so that Ali didn't even voice Blade in the 2025 Disney+ miniseries "Marvel Zombies." Who played the iconic half-vampire vampire hunter instead? Todd Williams, as it turns out. 

Oliver Grayson, aka Kid Omni-Man, doesn't age the way a regular human does. That's because his mother was Andressa, a being from the planet Thraxa. Thraxans are an insect-like species and age as such, only living about a year on average. Oliver being half-human slows that down significantly, though he's still the physical and mental equivalent of a 10-year-old human child by the time he's one.

Given the speediness at which Oliver ages, it's not surprising that he's already had to change voice actors from a child to a teenager. In his first appearances in Season 2, Oliver was played by Lincoln Bodin. But the character quickly aged beyond Bodin's voice, and Christian Convery of "Sweet Tooth" fame took over beginning in Season 3. 

As for Bodin, he's already avoided joining the ranks of child actors who disappeared from Hollywood after being replaced, having added roles on the shows "St. Denis Medical" and "Deer Squad," as well as in the movie "The Accountant 2," to his post-"Invincible" filmography thus far.

Ezra Miller's worst career moments, particularly the ones involving their personal life, cost them several major gigs — most notably the role of the Flash in the DC Extended Universe. That said, it's unlikely that would have been a long-term job anyway, given that the DCEU wasn't long for this world. And while nobody involved with "Invincible" outright stated that the controversies surrounding the actor were the reason, it seems more than coincidental that Miller's time playing D.A. Sinclair came to an end just as those troubles were coming to light.

With that, D.A. Sinclair, the scientist responsible for the ReAnimen, became another "Invincible" character who was only played by the original actor for a single season. Beginning in Season 2, the character was taken over by Emmy-winning voice actor Eric Bauza. As is common for Bauza on the shows he works on — such as "DuckTales," "Rise of the Teenage Mutant Ninja Turtles," and "The Powerpuff Girls" – he also lends his voice to other minor characters on "Invincible," playing various bystanders, henchmen, and the like. 

Though there are numerous side characters that are played by pretty huge stars in "Invincible," Rick Sheridan seemed like a strangely minor role for an actor like Jonathan Groff to take on. Not so much because Groff is a massive star, but because he's so prolific on stage and screen that it doesn't seem like he'd bother with a part so relatively small to begin with. 

So it wasn't a huge surprise that Groff only ended up playing William's lover-turned-Reaniman for Season 1. Beginning in Season 2, Luke Macfarlane took over the role of Rick Sheridan. It's Macfarlane's first and thus far only voice role, but he's definitely got a future in voicework if he so chooses, given how well he's handled his portrayal of the complex character. 

As for Groff, while he's arguably best known for playing Kristoff in "Frozen" and King George III in the original Broadway cast of "Hamilton," he also starred in Netflix's "Mindhunter," a TV show that will unfortunately never be completed. 

One of the things that unites the other examples on this list is that there wasn't an officially declared reason why the original actor left and had to be replaced. A notable exception to this is Aaron Paul, who didn't return to play major villain Scott Duvall/Powerplex for Season 4 of "Invincible." Not only did Paul make the decision to leave the role himself despite getting an offer to stay, but the reason he gave for doing so was rather unexpected.

In an interview with the YouTube show Kinda Funny Gamescast, Paul explained that his mental health simply couldn't handle another season of portraying Powerplex. "I put myself in that skin, and it was a skin I didn't feel comfortable in, to be honest," he said of getting into the character. "I didn't want to do it anymore. What it did to me, I didn't like." As of this writing, Powerplex has not made an appearance on the show since Paul's departure, and it remains to be seen if the villain will return with a different actor voicing him or simply not come back at all.