 Tara StrongBen Tennyson / Glitch (voice) | Ben Tennyson / Glitch (voice) |
 Montse HernandezGwen Tennyson (voice) | Gwen Tennyson (voice) |
 David KayeGrandpa Ken / Max Tennyson / Azmuth Humungousaur / Omni-Kix Humungousaur / Omni-Naut Humungousaur / Shock Rock / Omni-Naut Shock Rock (voice) | Grandpa Ken / Max Tennyson / Azmuth Humungousaur / Omni-Kix Humungousaur / Omni-Naut Humungousaur / Shock Rock / Omni-Naut Shock Rock (voice) |
 Dee Bradley BakerJetray / Omni-Kix Jetray / Omni-Naut Jetray / Rath / Goop (voice) | Jetray / Omni-Kix Jetray / Omni-Naut Jetray / Rath / Goop (voice) |
 Roger Craig SmithDiamondhead / Steam Smythe (voice) | Diamondhead / Steam Smythe (voice) |
 Daryl SabaraHeatblast / Omni-Naut Heatblast (voice) | Heatblast / Omni-Naut Heatblast (voice) |
 John DiMaggioPhil Billings / Four Arms (voice) | Phil Billings / Four Arms (voice) |
 Yuri LowenthalVilgax / Alien V (voice) | Vilgax / Alien V (voice) |
 Greg CipesKevin Levin / Quad Smack / Bashmouth / Crystalfist / Rush / Hot Shot / Dark Matter / Bootleg (voice) | Kevin Levin / Quad Smack / Bashmouth / Crystalfist / Rush / Hot Shot / Dark Matter / Bootleg (voice) |
 Todd HaberkornSlapback / Tetrax Shard / Solar Twain (voice) | Slapback / Tetrax Shard / Solar Twain (voice) |
 Travis WillinghamCannonbolt (voice) | Cannonbolt (voice) |
 Tom KennyPolar Twain (voice) | Polar Twain (voice) |
 Josh KeatonXLR8 (voice) | XLR8 (voice) |
