‘Invincible’ Season 4 Is Bringing in Matthew Rhys for a Major Role

Congo lining up off of Prime Video’s announcement that Invincible will have its fifth season queued up while its fourth season is waiting in the wings, Skybound Entertainment announced new casting for the adult animated series that’ll play a major role in its upcoming season at San Diego Comic-Con. During Invincible co-creator Robert Kirkman’s panel at San Diego Comic-Con, it was announced that actor Matthew Rhys (The Americans) will play the role of Dinosaurus. To all the folks who didn’t have the privilege of being in attendance at SDCC to witness the announcement firsthand, the official Invincible X/Twitter account had folks covered with a post showcasing what the character looks like… like a red dinosaur. Admincible can now confirm Matthew Rhys is voicing Dinosaurus!!! And here’s a first look at the character design. Source: trust me bro. Actual source: @RobertKirkman’s SDCC panel happening now. pic.twitter.com/3zNx1MaFM5 — INVINCIBLE (@InvincibleHQ) July 24, 2025 While that sounds like the kind of throwaway villain-of-the-week kind of fodder for Mark Grayson and crew to make short work of in the opening moments of an episode, Dinosaurus plays a pretty crucial role in the comics and thus, in the animated show, as the next major hurdle for Mark to overcome in his coming-of-age superhero journey. As mentioned earlier, Dinosaurus isn’t just a mindless brute; he’s a highly intelligent dinosaur person who quickly befriends Mark. Debuting in issue 68 of the comics, Dinosaurus is as close an analogue to Spider-Man‘s Lizard character as Invincible characters come. Dinosaurus is a split personality of a human scientist named David Anders. Contrary to rogues like Dr. Seismic, who justify their villainy as the end justifies the means, Anders’ primary goal, at least initially, is to use his intelligence to support environmental conservation efforts, which helps him and Grayson become fast friends as he navigates his new role as a hero. What makes Dinosaurus’ introduction into Invincible so novel is that it occurs after his previous partnership with Cecil had been irreparably damaged due to their differing ideals about how far one should go in defending humanity. Dinosaurus becomes Mark’s closest ally as the looming Vilrumite war grows ever closer. But, as all things Invincible tend to go, Dinosaurus quickly becomes his newest antagonist, putting Mark in yet another moral quandary for the type of hero he wants to be. We’ll spare you the meaty details for Dinosaurus’ heel turn. Still, as far as Invincible allies turned antagonists go, Dinosaurus is one of, if not the most interesting, characters in the series that forces Mark to confront the gray that exists to be a hero. Hopefully, Rhys’ acting chops will enrich the fan-favorite comic book character and ground Invincible‘s already inspired adaptation writing to new heights when he’s introduced properly to the Prime Video series. Invincible Season 4 is in production. Want more io9 news? Check out when to expect the latest Marvel, Star Wars, and Star Trek releases, what’s next for the DC Universe on film and TV, and everything you need to know about the future of Doctor Who. AnimationInvinciblePrime VideoSan Diego Comic-Con Get the best tech, science, and culture news in your inbox daily. News from the future, delivered to your present. Please select your desired newsletters and submit your email to upgrade your inbox. After an extended period of silence, Prime Video's finally planted a flag for 'Blade Runner 2099' to hit next year. The menu features snacks and bites inspired by both the game and Prime Video series. Season one of the Prime Video game adaptation was an all-at-once binge, but not season two. Yeoh hopes 'Ne Zha II' will remind audiences nationwide that Chinese animation has long been a force of beauty, power, and imagination. Our favorite wasteland survivors return for a new season of irradiated adventuring this December. Beijing Enlight Media's animated sequel is a mythological epic that puts others to shame.