Suggestions by @sam2020

David Franklin

as Heatblast in Ben 10: Race Against Time (Animated Version)

Steve Blum

as Heatblast in Ben 10: Race Against Time (Animated Version)

Stephen Lang

as Grandpa Max Tennyson in Ben 10: Race Against Time (Animated Version)

David Kaye

as Grandpa Max Tennyson in Ben 10: Race Against Time (Animated Version)

Barry Corbin

as Grandpa Max Tennyson in Ben 10: Race Against Time (Animated Version)

Lee Majors

as Grandpa Max Tennyson in Ben 10: Race Against Time (Animated Version)

Paul Eiding

as Grandpa Max Tennyson in Ben 10: Race Against Time (Animated Version)

Judd Nelson

as Eon in Ben 10: Race Against Time (Animated Version)

Sean Donnellan

as Eon in Ben 10: Race Against Time (Animated Version)

Christien Anholt

as Eon in Ben 10: Race Against Time (Animated Version)

David Kaye

as Grandpa Max Tennyson in Ben 10: Race Against Time (Animated Version)

Dee Bradley Baker

as Grandpa Max Tennyson in Ben 10: Race Against Time (Animated Version)

David Franklin

as Grandpa Max Tennyson in Ben 10: Race Against Time (Animated Version)

Steve Blum

as Grandpa Max Tennyson in Ben 10: Race Against Time (Animated Version)

Meagan Smith

as Gwen Tennyson in Ben 10: Race Against Time (Animated Version)

Sadie Sink

as Gwen Tennyson in Ben 10: Race Against Time (Animated Version)

Asher Angel

as Ben Tennyson in Ben 10: Race Against Time (Animated Version)

Levi Miller

as Ben Tennyson in Ben 10: Race Against Time (Animated Version)

Tara Strong

as Ben Tennyson in Ben 10: Race Against Time (Animated Version)

Adam Wylie

as Jt in Ben 10 (Live Action tv show)