Main •
Isabella Pappas as Amy / Havoc, a teenage supervillain with sonic powers, who stands up to the head of the League of Villains, forcing her family to go on the run •
Malachi Barton as Colby / Flashform, Amy and Jake's younger brother who gains shapeshifting abilities after turning 13. He was originally named "Number 3" before getting a name. Colby is later revealed to be the Chosen One, a villain from each generation that develops multiple powers. Throughout the series, he has gained super-speed, invisibility, regeneration, kinetic manipulation, power transference through fist-bumping, and floating. Barton also voices Colby when he is in different forms. • Reed Horstmann as Jake / Chaos, Amy's brother with super-strength who wants to become a better person. He does get a job as a waiter at The Round-Up Can-Teen-A. • Kayden Muller-Janssen as Hartley, the Maddens' neighbor and Amy's best friend who learns that the Maddens are supervillains •
James Patrick Stuart as Vic / Kraniac, Amy's father who is a semi-competent
mad scientist with genius-level intellect who makes different gadgets. In his civilian form, Vic becomes the substitute teacher of Valley View High School. The episodes "Family Secrets" and "Power Struggle" revealed that Vic had been the former superhero Silver Flame whose pyrokinetic powers were stripped from him by his brother Blue Granite on his parents' orders when they found out he was in love with Surge. Even though Vic's powers were lost during his kids' struggles to reclaim it, Colby transfers his kinetic manipulation to Vic. •
Lucy Davis as Eva / Surge, Amy's mother with electrokinesis who was working to become the Chief Commander of the League of Villains only for Onyx to give it to Slither. Eva does different odd jobs before working as a waitress at The Round-Up Can-Teen-A.
Recurring •
Patricia Belcher as Celia, Hartley's grandmother and the Maddens'
landlady. The episode "Power Hungry" reveals that Celia has 7 ex-husbands where the 8th ex-husband is still missing. •
Steve Blum as Onyx, the leader of the League of Villains. •
Alec Mapa as Mr. Tennyson, a
teacher at Valley View High School and member of the neighborhood watch who later becomes Valley View High School's
principal. • Isaiah C. Morgan as Milo, a student at Valley View High School who has a collection of superhero memorabilia. The episode "The Return" reveals that his real name is Milonius Theodore Cubbington V. • Mariah Iman Wilson as Starling, a teenage superhero with flight, time-freezing abilities, and a powerful wind attack known as the Velocity Force who is Havoc's nemesis. The episode "A Superhero in Valley View" reveals that Starling's true identity is Judith. • Harrison White as Robert, Celia's current boyfriend who is Valley View's
chief of police. • Giselle Torres as Gem, a popular student at Valley View High School who is Amy and Hartley's longtime nemesis. == Production ==