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