Main Cast and Lead Voice Actors
The Invincible TV series features a large ensemble cast led by Steven Yeun as Mark Grayson, the superhero son of Omni-Man. Sandra Oh voices Debbie Grayson, and J.K. Simmons voices Nolan Grayson / Omni-Man. The show is based on the Image Comics series created by Robert Kirkman, Cory Walker, and Ryan Ottley, and is produced by Skybound Entertainment in association with Amazon Studios. The first three seasons have been confirmed, with the series adapting the comic's major story arcs including the Viltrumite invasion and the battle for Earth's future Forbes.
Steven Yeun, known for his role in The Walking Dead and the film Minari, anchors the series as Mark Grayson, balancing teenage life with his emerging powers. Sandra Oh brings emotional depth to Debbie Grayson, the mother who must protect her family from cosmic threats. J.K. Simmons delivers a chilling performance as Omni-Man, whose true Viltrumite nature drives much of the series' conflict. The cast also includes Walton Goggins as Rex Splode, Malese Jow as Atom Eve, and Andrew Rannells as Rex Splode, creating a layered ensemble that supports long-term character development across seasons.
Key Supporting Characters and Recurring Cast
Supporting roles are filled by a mix of established voice actors and rising talent, including Gillian Jacobs as Atom Eve, who brings a grounded, determined quality to the character. Zazie Beetz voices Amber Bennett, Mark's girlfriend, whose presence anchors the show's civilian and emotional storylines. The series also features Ross Marquand as Rex Splode and Patrick Cavanaugh as Todd, providing contrast to the high-stakes superhero action. Recurring Viltrumite characters are voiced by actors such as Lennie James and Anthony Mackie, reinforcing the show's focus on alien invasion and intergalactic politics Forbes.
The show's casting strategy emphasizes vocal range and dramatic credibility, with actors selected to match the comic's intense tone. Gillian Jacobs brings sharp comedic timing and emotional weight to Atom Eve, while Zazie Beetz balances vulnerability and strength as Amber Bennett. Recurring characters like Rex Splode and Todd are voiced by actors who can shift between humor and tension, supporting the series' mix of action and character drama. This approach helps Invincible sustain a large ensemble without diluting the central story of Mark Grayson's growth and the consequences of power.
Production, Seasons, and Where to Watch
Invincible is produced by Skybound Entertainment and animated by Wind Sun Sky Entertainment, with Robert Kirkman serving as creator and executive producer. The series premiered on Amazon Prime Video in March 2021, and each season adapts key story arcs from the Image Comics source material. Amazon Studios greenlit the show for multiple seasons, with the second season expanding the Viltrumite invasion arc and introducing new characters and factions. The series is available exclusively on Prime Video, where it is one of the platform's flagship animated originals Amazon Prime Video.
Season 1 covers Mark Grayson's origin and the revelation of Omni-Man's true identity, while Season 2 and beyond explore the aftermath of the Viltrumite invasion and the formation of new superhero teams. The show's animation style