Reparto y equipo
-
Steven YeunMark Grayson - J.K. SimmonsOmni-Man
- Sandra OhDebbie Grayson
- Seth RogenAllen the Alien
- Mark HamillArt Rosebaum
- Walton GogginsCecil Stedman
- Jason MantzoukasRex Sloan/Rex Splode
- Mae WhitmanFightmaster & Dropkick
- Zazie BeetzAmber Bennett
- Max BurkholderOliver Grayson
- Chris DiamantopoulosDoc Seismic/Donald Ferguson
- Michael DornBattle Beast
- Grey GriffinAmanda/Shrinking Ray
- Gillian JacobsSamantha Eve Wilkins/Atom Eye
- Malese JowKate Cha/Dupli-Kate
- Khary PaytonBlack Samson
- Zachary QuintoRudy Conners/Robot
- Andrew RannellsWilliam Clockwell
- Kevin Michael RichardsonMauler Twins/Monster Girl
- Clancy BrownDamien Darkblood
- Maud LewisProducción
- Robert KirkmanCreación