596 suggestions
Kellen Goff
as NRG in 5 Years Later- Ben 10's universe

Xander Mobus
as Armodrillo in 5 Years Later- Ben 10's universe

Xander Mobus
as Rath in 5 Years Later- Ben 10's universe
Kellen Goff
as Lodestar in 5 Years Later- Ben 10's universe
Yuri Lowenthal
as Alien X in 5 Years Later- Ben 10's universe

Ryan Asher (O.R.Ash)
as Chromastone in 5 Years Later- Ben 10's universe
Kellen Goff
as Big Chill in 5 Years Later- Ben 10's universe

Paxton Lee
as Jetray in 5 Years Later- Ben 10's universe
Kellen Goff
as Humungousaur in 5 Years Later- Ben 10's universe
Kellen Goff
as Ultimate Echo Echo in 5 Years Later- Ben 10's universe
Kellen Goff
as Echo Echo in 5 Years Later- Ben 10's universe

Rob Orpilla (Kuro the Artist)
as Swampfire in 5 Years Later- Ben 10's universe
David Sobolov
as Way Big in 5 Years Later- Ben 10's universe

Ryan Asher (O.R.Ash)
as Ghostfreak in 5 Years Later- Ben 10's universe

Paxton Lee
as Upgrade in 5 Years Later- Ben 10's universe

Xander Mobus
as Four Arms in 5 Years Later- Ben 10's universe

Xander Mobus
as Diamondhead in 5 Years Later- Ben 10's universe

Richard Steven Horvitz
as Grey Matter in 5 Years Later- Ben 10's universe
Kellen Goff
as XLR8 in 5 Years Later- Ben 10's universe
David Kaye
as Heatblast in 5 Years Later- Ben 10's universe