Invincible: The Animated Series

 was an American animated action-adventure superhero television series based on  by, being developed by TBD. It was produced by and Warner Bros. Animation and it aired on Cartoon Network from December 13th, 2007 until September 15th, 2012.

Synopsis
Mark Grayson is the son of the world's greatest hero, Omni-Man, as soon he gains powers similar to his father. Thanks to that, he becomes the superhero known as Invincible yet soon his world begins to crack when he both learns how dangerous being a hero is and the truth about his father.

Main

 * Mark Grayson/Invincible (voiced by Dante Basco) - a teenager who gains powers as he heads to protect the world from threats, soon dealing with some more dark things.
 * Samantha Eve Wilkins/Atom Eve (voiced by Danica McKellar) - a teenage friend of Mark's who is also a heroine as she ends up becoming a close friend to him while trying to figure out what sort of hero she wants to be.

Supporting

 * Nolan Grayson/Omni-Man (voiced by Jason Isaacs) - the world's greatest hero and a Viltrumite who turns out to be a world conqueror as he wants Mark to join him. He eventually becomes remorseful for his actions and tries to live a peaceful life on another planet.
 * Debbie Grayson (voiced by Janice Kawaye) - Mark's mother who is supportive of his career in heroism, although she wants him to be safe.
 * William Clockwell (voiced by Will Friedle) - Mark's charismatic yet somewhat annoying best friend who ends up learning that he is Invincible as he tries to help him out when he can.
 * Amber Bennett (voiced by Ashley Johnson) - a friendly and popular teenager who ends up becoming attracted to Mark as they end up dating.
 * Cecil Stedman (voiced by Ron Perlman) - the leader of the Global Defense Agency who cares about the safety of the world as he is often responsible for sending Mark out on missions.
 * Donald Ferguson (voiced by Jeffrey Combs) - Cecil's assistant who is a cyborg nearly incapable of death or feeling pain as he often helps with behind the scenes things for him.
 * The Guardians of the Globe, consisting of:
 * Rudolph "Rudy" Connors/Robot (voiced by Yuri Lowenthal as Rudy and David Kaye as Robot) - the former leader of the disbanded Teen Team and now the leader of the new Guardians of the Globe who is seemingly an android that has gained sentience. He is soon revealed to be a heavily mutated figure who has created a clone body using a mix of his and Rex Splode's DNA.
 * The Immortal (voiced by Maurice LaMarche) - the leader of the original Guardians of the Globe who ends up dying as he ends up returning, butting with Robot for leadership of the new Guardians.
 * Rex Sloan/Rex Splode (voiced by James Arnold Taylor) - a cocky and egocentric former member of the Teen Team who is capable of causing explosions as he is both Eve's ex-boyfriend and a member of the new Guardians of the Globe.
 * Kate Cha/Dupli-Kate (voiced by Kelly Hu) - a less talkative member of the Teen Team and then Guardians of the Globe who is capable of multiplying herself as well as having some sort of a relationship with Rex.
 * Amanda/Monster Girl (voiced by Jennifer Hale as Amanda and John DiMaggio as her monster form) - a member of the Guardians of the Globe who can transform into a raging monster but at the cost of her slowly becoming younger and younger.
 * Markus Grimshaw/Black Samson (voiced by Phil LaMarr) - a former member of the original Guardians of the Globe who lost his powers as he ends up gaining a suit that allows him to replicate them as he joins the new team.
 * Bulletproof (voiced by TBD) - a recent member of the Guardians of the Globe who has powers similar to Invincible as he attempts to be a good hero.
 * Shapesmith (voiced by TBD) - a Martian who has fled Mars, replacing the life of an astronaut as he soon decides to become a shapeshifting superhero, eventually joining the Guardians of the Globe.
 * The Shrinking Ray (voiced by TBD) - a member of the Guardians of the Globe who is considered to be somewhat useless to them.
 * Allen the Alien (voiced by Billy West) - a friendly yet sometimes idiotic alien who works for the coalition of planets as he helps out Invincible a few times.
 * Damien Darkblood (voiced by Tom Kane) - a nihilistic demon detective who is known for never failing at a case as he was sent on the Guardians of the Globe's murder.
 * Art Rosenbaum (voiced by ) - a famous costume designer for superheroes who has a close relationship with the Grayson family as he is the one who made Mark's costume.
 * Rick Sheridan (voiced by Josh Keaton) - a popular yet friendly upper class man at Upstate University who ends up befriending Mark, William and Amber as he ends up being transformed into a Reaniman, eventually being freed but still bionic.
 * Guardians of the G (original)

Antagonists

 * The Viltrumite Empire
 * Angstrom Levy (voiced by Tim Curry) - a genius man with the ability to open portals to alternate dimensions as he soon gets disfigured, blaming it on Invincible, wanting revenge.
 * The Mauler Twins (both voiced by Gregg Berger) - two hulking blue supervillains who are also super-geniuses as they believe each other is a clone and often either work for other villains or themselves.
 * Titan (voiced by Michael Clarke Duncan) - a former mob enforcer who is capable of turning his skin into stone as he ends up overthrowing Machine Head's syndicate and taking his place as a mob boss.
 * Isotype (voiced by TBD) - Machine Head's former second-in-command who can teleport people who has now became Titan's second-in-command.
 * D.A. Sinclair (voiced by David Faustino) - a mentally ill prodigy who has found a way to create bionic supersoldier known as Reanimen as he soon plots to create living Reanimen.
 * Machine Head (voiced by TBD) - a mob boss who is extremely cybernetic as he was Titan's boss until being overthrown and is now in prison, plotting his revenge.
 * Battle Beast (voiced by TBD) - a monstrous space warrior who declares himself as one of the greatest hunters out there as he constantly looks for fresh combatants.
 * Rus Livingston (voiced by TBD) - a former astronaut who has been infected by Martian parasites known as Sequids as he now wants to invade Earth for the Sequids.
 * Doc Seismic (voiced by TBD) - an unstable supervillain who loves to rant as he uses a device that allows him to control seismic waves.
 * The Lizard League, consisting of:
 * King Lizard (voiced by Seth Green) - the flamboyant and egocentric leader of the terrorist group known as the Lizard League who wants to rule the world.
 * Iguana (voiced by TBD) - an enforcer of the Lizard League known for being the strongest of the Lizard League and is pretty vicious.
 * Komodo Dragon (voiced by TBD) - the only female major enforcer of the Lizard League who is both pretty flirtatious and is a skilled hand to hand combatant.
 * Salamander (voiced by TBD) - a more stoic member of the Lizard League who is also a skilled combatant and loyal to King Lizard.
 * Sanford (voiced by TBD) - Black Samson's butler who ended up stealing his suit due to wanting revenge on the Guardians for rejecting his boss after he lost his powers.
 * David Hiles (voiced by TBD) - Mark's paranoid physics teacher who ends up to be a mad bomber, turning his students into bombs in order to destroy teenage society.

Episodes
See List of episodes.

Trivia

 * The series tries to keep faithful to the original source, despite the limitations of being made for a children's channel forcing to tone down darker elements in order to fit a TV-PG rating, although it takes some deviations as well.
 * Debbie and Mark by extension are Japanese Americans.
 * Some plotlines are made up due to being produced while the comic is still in production.