Watch Ben 10: Ultimate Alien (2010) Online!
With his secret identity now revealed to the world, Ben Tennyson continues to fight evil as a superhero with the help of the newly acquired Ultimatrix.
Grandpa Max
Ben Tennyson (voice)
Gwen Tennyson (voice)
Humungosaur (voice)
Kevin Levin (voice)
Aggregor
Darkstar
Azmuth
Sir George
Alan Albright / Heatblast (voice)
Driscoll / Additional Voices (voice)
Ben 10,000 / Eon (voice)
Serena / Young Ben Tennyson (voice)
