Mark Grayson / Invincible (18 episodes, 2021-2024)
Debbie Grayson (18 episodes, 2021-2024)
Nolan Grayson / Omni-Man (18 episodes, 2021-2024)
Monster Girl / Shrinking Rae / Olga / Thula / Amanda / Assistant / Betsy / Dinosaur #3 / GDA Agent / GDA Trooper / Helga / Nurse / Woman (16 episodes, 2021-2024)
Amber Bennett / Amber (15 episodes, 2021-2024)
Cecil / Cecil Stedman (15 episodes, 2021-2024)
Atom Eve / Eve / Eve Wilkins / College Girl / Samantha Eve Wilkins (14 episodes, 2021-2024)
Rex Splode / Rex / Zombie #2 (13 episodes, 2021-2024)
William Clockwell / William (13 episodes, 2021-2024)
Donald / Donald Ferguson / Doc Seismic / GDA Med Tech / Isotope / Jerry / Pete / Thraxan Crew / Todd / Vidor / Villain (12 episodes, 2021-2024)
Mauler Twins / Monster / Monster Girl / Flaxan Leader / King Mauler / Male Thraxan / Mauler / Mauler 1 / Mauler 2 / Random Maulers / Tech Trooper #1 (12 episodes, 2021-2024)
Black Samson / Astronaut #1 / Martian / Martian Leader (11 episodes, 2021-2024)
Robot / Dinosaur #1 / Robot Life Pod / Zombie #4 (11 episodes, 2021-2024)
Dupli-Kate / GDA Agent / Iguana / Kate Cha / Lucinda / Wife / Zombie #3 (10 episodes, 2021-2024)
Rudy / Immortal / Omnipotus / The Immortal / Aquarus / Bi-Plane / Kursk / Proprietor / Rudolph 'Rudy' Connors (10 episodes, 2021-2024)
Eve's Father / Kill Cannon / Adam / Captain / Data Twin #2 / Killcannon / Marvin / Octoboss / Paramedic / Professor / Robber #1 / Supreme Lizard / The Giant / Ticket Seller (8 episodes, 2021-2024)
Additional Voices / Bridget (8 episodes, 2023-2024)
Additional Voices (8 episodes, 2023-2024)
General Kregg / Damien Darkblood / Bryant / Ka-Hor (7 episodes, 2021-2024)
Bulletproof / Council Member #1 / Cute Guy / Data Twin #1 / Dinosaur #2 / Komodo Dragon / Sergeant / Zombie #1 (7 episodes, 2023-2024)
Allen / Allen the Alien (7 episodes, 2021-2024)
Angstrom Levy / Angstrom / Angstrom #646 (5 episodes, 2023-2024)
Art Rosebaum / Art (5 episodes, 2021-2024)
Graduation Announcer / Newscaster / Reporter / Scientist / Space Director / TV Announcer / Umpire (4 episodes, 2021-2023)
Shapesmith / Rus / Corey / Punk Thug / Tech Trooper #2 (4 episodes, 2023-2024)
Paul (3 episodes, 2023-2024)
April (3 episodes, 2024)
King Lizard (3 episodes, 2023-2024)
Dean Winslow / Principal / Principal Winslow (3 episodes, 2021-2024)
Titan (2 episodes, 2021)
Alien Guard / DA Sinclair / Neighbor / Viltrumite (2 episodes, 2024)
Thaedus (2 episodes, 2023-2024)
Matt (2 episodes, 2021)
Oliver (2 episodes, 2024)
Nuolzot / Séance Dog (2 episodes, 2023-2024)
Astronaut #2 / Louise / Young Wife (2 episodes, 2021-2023)
Steve (2 episodes, 2021)
Rick (2 episodes, 2024)
Aquaria / Forewoman / Telia (2 episodes, 2023)
Andressa / Female Thraxan / GDA Agent (2 episodes, 2023-2024)
Announcer / Caitlin / Denise / Mrs. Farnsley (2 episodes, 2023-2024)
Louise's Daughter (1 episode, 2023)
Riley (1 episode, 2024)
Holly / War Woman (1 episode, 2021)
Fiona / Vanessa (1 episode, 2021)
Darkwing / Husband / Royal Guard #1 (1 episode, 2023)
Martian Man (1 episode, 2021)
Machine Head (1 episode, 2021)
Rick Sheridan (1 episode, 2021)
Josef / Red Rush (1 episode, 2021)
Council Member #2 / Theo (1 episode, 2023)
Angstrom Jr. (1 episode, 2024)
Battle Beast (1 episode, 2021)
Martian Emperor (1 episode, 2021)
DA Sinclair (1 episode, 2021)
Lucan (1 episode, 2023)
Darkwing (1 episode, 2021)
Agent Spider / Jogger (1 episode, 2024)
Green Ghost (1 episode, 2021)
Doug Cheston / Punk Kid (1 episode, 2021)
Guard #2 (1 episode, 2021)
Jane (1 episode, 2024)
Connie / Model (1 episode, 2021)
Carol (1 episode, 2023)
Narrator (1 episode, 2023)
Filip Schaff (1 episode, 2024)
Anissa (1 episode, 2024)
Various (uncredited) (1 episode, 2021)