Tara Strong
Ben Tennyson / Glitch (voice)
Acting
Montse Hernandez
Gwen Tennyson (voice)
Acting
David Kaye
Grandpa Ken / Max Tennyson / Azmuth Humungousaur / Omni-Kix Humungousaur / Omni-Naut Humungousaur / Shock Rock / Omni-Naut Shock Rock (voice)
Acting
Dee Bradley Baker
Jetray / Omni-Kix Jetray / Omni-Naut Jetray / Rath / Goop (voice)
Acting
Roger Craig Smith
Diamondhead / Steam Smythe (voice)
Acting
Daryl Sabara
Heatblast / Omni-Naut Heatblast (voice)
Acting
John DiMaggio
Phil Billings / Four Arms (voice)
Acting
Yuri Lowenthal
Vilgax / Alien V (voice)
Acting
Greg Cipes
Kevin Levin / Quad Smack / Bashmouth / Crystalfist / Rush / Hot Shot / Dark Matter / Bootleg (voice)
Acting
Todd Haberkorn
Slapback / Tetrax Shard / Solar Twain (voice)
Acting
Travis Willingham
Cannonbolt (voice)
Acting
Tom Kenny
Polar Twain (voice)
Acting
Josh Keaton
XLR8 (voice)
Acting