When 10-year-old Ben Tennyson discovers a mysterious device, he gains the power to change into ten different alien heroes, each with uniquely awesome powers. With such abilities at his disposal, Ben realizes a greater responsibility to help others and stop evildoers, but that doesn't mean he's above a little superpowered mischief now and then.
| Actor | Role |
|---|---|
 Tara StrongBen Tennyson (voice) | Ben Tennyson (voice) |
 Meagan MooreGwen Tennyson (voice) | Gwen Tennyson (voice) |
 Paul EidingGrandpa Max (voice) | Grandpa Max (voice) |
 Dee Bradley BakerStinkfly / Wildmutt (voice) | Stinkfly / Wildmutt (voice) |
 Steve BlumGhostfreak / Heatblast / Vilgax (voice) | Ghostfreak / Heatblast / Vilgax (voice) |
 Richard McGonagleFour Arms (voice) | Four Arms (voice) |
 Richard Steven HorvitzGrey Matter (voice) | Grey Matter (voice) |
 Jim WardDiamondhead / Wildvine / XLR8 (voice) | Diamondhead / Wildvine / XLR8 (voice) |