Debbie Grayson (voice)

Nolan Grayson / Omni-Man (voice)

Mark Grayson / Invincible (voice)

Eve (voice) / Eve / College Girl (voice)

Cecil (voice)

Shrinking Rae / Monster Girl / Olga (voice) / Shrinking Rae / Monster Girl / GDA Tech (voice) / Daphne / Coalition Representative (voice) / Monster Girl / Thula / Woman (voice) / Olga / Monster Girl / Shrinking Rae (voice) / Betsy / Shrinking Rae (voice) / Monster Girl / GDA Agent / Assistant (voice) / Amanda / Betsy / Daphne (voice) / Amanda / Betsy (voice) / Amanda / Daphne / Female Security (voice) / Amanda / Shrinking Rae (voice) / Olga (voice) / Amanda / Shrinking Rae / Shriveled Woman (voice) / Amanda / Dinosaur #3 / GDA Trooper (voice) / News Anchor (voice) / Shrinking Rae / Monster Girl / Betsy (voice) / Monster Girl / Betsy (voice) / Amanda / Shrinking Rae / Betsy (voice) / Shrinking Rae (voice) / Thula (voice) / Monster Girl / Helga / Nurse (voice) / Amanda / Shrinking Rae / Cop (voice) / Shrinking Rae / Betsy / Woman (voice) / Monster Girl / Shrinking Rae (voice)

Donald (voice) / Donald / Doc Seismic (voice) / Donald / Isotope (voice) / Donald / Force Fist / Professor / Muscles (voice) / Donald / Royal Guard (voice) / Donald / GDA Researcher #2 / Tech Trooper (voice) / Isotope (voice) / Donald / GDA Med Tech (voice) / Donald / Villain (voice) / Donald / Vidor / Thraxan Crew (voice) / Isotope / Guard / Bodega Owner (voice) / Donald / Male Worker (voice) / Donald / Jerry (voice) / Pete / Donald / Todd (voice) / Donald / Fireman #1 / Worker (voice)

Immortal / Rudy (voice) / Rudy (voice) / Rex / Robot (voice) / Immortal / Rudy / Omnipotus (voice) / Immortal / Aquarus / Bi-Plane / Kursk (voice) / Additional Voices (voice) / Alien Captain / Coalition Representative (voice) / Rex (voice) / Immortal / Rudy / Proprietor (voice) / Immortal (voice) / Immortal / Rudy / Three-Eyes (voice) / Immortal / Rudy / Kursk (voice)

Allen (voice)

Paul (voice)

Thaedus (voice)

Rick (voice)

Thragg (voice)