Suggestions by @deadpool69

Ewan McGregor

as Dr. Shueman in BEN 10 Live Action Series

Score: +2

Jett Klyne

as Elsgood in BEN 10 Live Action Series

Score: +1

Campbell Scott

as Scooter in BEN 10 Live Action Series

Score: +1

Campbell Scott

as Scooter in Ben 10 Horror Storie

Score: +1

Vanessa Marshall

as Female Cannonbolt in BEN 10 Live Action Series

Score: 0

Victoria Moroles

as Tiffany in BEN 10 Live Action Series

Score: +1

Wes Tian

as Gilbert in BEN 10 Live Action Series

Score: +1

Emme Muñiz

as Mandy in BEN 10 Live Action Series

Score: +1

Max Muñiz

as Andy in BEN 10 Live Action Series

Score: +1

Armin Shimerman

as Slix Vigma in BEN 10 Live Action Series

Score: +1

Dee Bradley Baker

as Interpreter Alien in BEN 10 Live Action Series

Score: +1

Michael James Shaw

as Enforcer Alien in BEN 10 Live Action Series

Score: +1

Michael James Shaw

as Interpreter Alien in BEN 10 Live Action Series

Score: +1

Gemma Chan

as Councilwoman Liang in BEN 10 Live Action Series

Score: +1

Maggie Smith

as Tour Guide in BEN 10 Live Action Series

Score: -1

Sean Gunn

as ALL ALIENS in BEN 10 Live Action Series

Score: +5

Vanessa Marshall

as Gwen's Four Arms in BEN 10 Live Action Series

Score: +1

Vanessa Marshall

as Gwen's Diamondhead in BEN 10 Live Action Series

Score: 0

Kari Wahlgren

as Gwen's Grey Matter in BEN 10 Live Action Series

Score: 0

Grey DeLisle

as Gwen's Heatblast in BEN 10 Live Action Series

Score: +1