League of Super Evil

The League of Super Evil are the main protagonists of the series. The members are:

• Voltar (voiced by Scott McNeil) is the self-proclaimed leader and commander of the League. Voltar is not very bright and always takes Doktor Frogg’s ideas as his own. He has a nemesis named Von Pantaloon who was his rival from Kiddy College. In "Ounce Upon a Lose", Voltar used to be a hall monitor until he met Doktor Frogg, Red Menace, and Doomageddon.
• Doktor Frogg (voiced by Lee Tockar) is a self-proclaimed mad scientist and inventor for the League. He is often tormented by Doomageddon who chews on his robot claws. In "Hair Today, Gone Tomorrow", it’s revealed that Frogg is allergic to hair. Out of all the members in the League, Frogg aspires to be a true villain and often has much more evil aspirations compared to Voltar.
• Red Menace (voiced by Colin Murdock) is the Happy-Go-Lucky member of the League. He is the only member who doesn’t like to be evil. He has a mother named Mama Menace and has an unseen but mentioned Grandmother named Grand-Menace. He is best friends with Doomageddon.
• Doomageddon is the League’s doomhound pet. Doomageddon is known for tormenting and torturing Doktor Frogg. Sometimes, Doomageddon would often go to his extra-dimensional happy place nicknamed DoomWorld. In "00-Geddon" with the League not noticing, Doomageddon works as a secret spy.
• The Henchbots are the robotic henchmen

The League of Super Evil often ends up in conflict with other supervillains in Metrotown who are more important and competent than they are:

• Skullosus (voiced by Colin Mudock) is the top supervillain in Metrotown.
  • The Skullmandos are the robotic foot soldiers of Skullosus.
• Cougar (voiced by Tabitha St. Germain) is a cat-themed supervillain.
• Linemaster (voiced by Lee Tockar) is a supervillain obsessed with being the first in line so that he can have bragging rights.
• Commander Chaos is the archenemy of Force Fighters V.
• Doom Driver is an undead villain who lives a block away from the League of Super Evil.
• Rock Gothlington (voiced by Scott McNeil) is a rock metal-themed supervillain.
• Evil Stevens is the proprietor of the supervillain store "Rotten Core". Evil Stevens is a parody of Steve Jobs and his “Rotten Core“ company is a parody of Apple.

Metrotown as an assortment of superheroes who protect the town and who the League of Super Evil often try to avoid:

• General Sargent (voiced by Blu Mankuna) is the general of the Metrotown Army. He has a relationship with his daughter, Elizabeth Sargent. He has a loud voice and is often shouting orders or one-liners, and will often go out the front lines himself against villainy, especially against Skullosus.
  • Elizabeth "Liz" Sargent (voiced by Tabitha St. Germain) is General Sargent’s daughter. When she took her father’s prototype battle armor, and she dubbed herself “ Lighting Liz “. She has a tiny crush with Voltar.
• The Legion of Glory is a superhero team that operates in Metrotown.
  • Glory Guy (voiced by Lee Tockar) is one of Metrotown’s greatest superheroes. He lives in the grand Halls of Glory. Glory Guy is the leader of a superhero group known as the “Legion of Glory.”
  • Wow Woman (voiced by Tabitha St. Germain) is a female superhero who is a member of The Legion Of Glory. Due to her hotness, Voltar, Doktor Frogg, Red Menace & the rest of Metrotown have crushes on her eventually. She also has nice boots that she collects from people.
  • NightShade (voiced by Scott McNeil) is a superhero who is a member of The Legion Of Glory. As his name implies, he fights crime during the night. He has a father named Dayshade who crashed into a building after he was blinded by a young Voltar and his cape fell down on Voltar’s baby crib. After the crash, Voltar kept Dayshade’s cape and dubbed it “ Mister Wubby “.
• Justice Gene (voiced by Colin Murdock) is a wannabe superhero who is the victim/target for The League’s "evil plans". He first appears in "Justice Gene" when he gives the League of Super Evil too many rules for their pranks to be the most rude and annoying of the neighborhood. Eventually, he got "sent back to basics" by his chief due to a rule he broke when his socks were covered in stinky cheese (because of the League of Super Evil's stinky cheese piñata) and he wore mismatching socks. In "Bite at the Museum", Gene took up the job as a museum security guard and the League of Super Evil showed up again to get something from one of the exhibits. He got fired from his job since the manager had caught him messing around with the dinosaur exhibit and put back a dinosaur the wrong way. In "Injustice Gene", he breaks into the League's lair in a depressed state. Saying that he couldn’t be a hero anymore after his latest firing, he joins the team and becomes Injustice Gene. At the end of the episode, he later gets hired by Glory Guy to be the janitor for the Halls of Glory. In "Just Us Genes" after being thwarted by the League once again, he "borrows" one of Glory Guy's inventions which makes copies of them where he later takes over Metrotown where his plan failed once again. Due to one of his clones saying that the whole world was going to be "Justice Gene'd", he was horrified by the idea and stops his vehicle to talk about it and he and his clones were stuck on Voltar's gum wad.
• The Force Fighters are 5 heroes in Metrotown who are parodies of the Super Sentai heroes and also own a sushi restaurant in town. The Members of Force Fighters V are:
  • Seafoam Green (voiced by Lee Tockar)
  • Perrywinkle (voiced by Colin Murdock)
  • Rosé (voiced by Asaph Fipke)
  • Goldenrod (voiced by Tabitha St. Germain)
  • Magenta (voiced by Peter Kelamis)

• Steve (voiced by Lee Tockar) is the League of Super Evil's next door neighbor and one of Voltar’s archenemies. Steve’s face is never seen throughout the show. His catchphrase is “ I Don’t Care! “.