 Yuri LowenthalBen Tennyson /Feedback /Sock Vendor (voice) | Ben Tennyson /Feedback /Sock Vendor (voice) |
 Ashley JohnsonGwen Tennyson (voice) | Gwen Tennyson (voice) |
 Greg CipesKevin Levin (voice) | Kevin Levin (voice) |
 Dee Bradley BakerHeatblast /Eatle /Humungousaur /Jury Rigg /Psyphon /Lodestar /Spidermonkey / NRG /Water Hazard /Psyphon (voice) | Heatblast /Eatle /Humungousaur /Jury Rigg /Psyphon /Lodestar /Spidermonkey / NRG /Water Hazard /Psyphon (voice) |
 Peter RenadaySir George (voice) | Sir George (voice) |
 Vyvan PhamJulie Yamamoto /Ship (voice) | Julie Yamamoto /Ship (voice) |
 James RemarVilgax (voice) | Vilgax (voice) |
 John DiMaggioDiagon/ Four Arms /Bubble Helmet /Zombozo / Armodrillo/ Tentacle Vendor (voice) | Diagon/ Four Arms /Bubble Helmet /Zombozo / Armodrillo/ Tentacle Vendor (voice) |
 Scott MenvilleJimmy Jones (voice) | Jimmy Jones (voice) |
 Jeff BennettAzmuth (voice) | Azmuth (voice) |
 Tara StrongYoung Ben Tennyson /Pakmar / Alien Mother /Little Girl (voice) | Young Ben Tennyson /Pakmar / Alien Mother /Little Girl (voice) |
 Bumper RobinsonRook Blonko /Bloxx /Terraspin /Smoothie Vendor (voice) | Rook Blonko /Bloxx /Terraspin /Smoothie Vendor (voice) |
 Paul EidingMax Tennyson /Zed /Liam (voice) | Max Tennyson /Zed /Liam (voice) |
 David A. KayeCannonbolt /Shocksquatch /Khyber /Cyanic Alien (voice) | Cannonbolt /Shocksquatch /Khyber /Cyanic Alien (voice) |
 Corey BurtonMalware /Mr. Baumann (voice) | Malware /Mr. Baumann (voice) |
 Rob PaulsenMagister Patelliday /Tummyhead /Alien Driver (voice) | Magister Patelliday /Tummyhead /Alien Driver (voice) |
