Suggestions by @ladiesman217

Frank Welker

as Ghostfreak (Voice) in Ben 10

Steve Blum

as Ghostfreak (Voice) in Ben 10

Sam Riegel

as Echo Echo in Ben 10

Zach Aguilar

as Echo Echo in Ben 10

Yuichi Nakamura

as Wildvine in Ben 10 (Japanese version)

Maaya Uchida

as Charmcaster in Ben 10 (Japanese version)

Takehito Koyasu

as Zombozo in Ben 10 (Japanese version)

Kentaro Ito

as Upchuck in Ben 10 (Japanese version)

Saori Hayami

as Gwen Tennyson in Ben 10 (Japanese version)

Richard Epcar

as Max Tennyson in Ben 10: Alien Force - Vilgax Attacks [The Animated Miniseries]

David Kaye

as Max Tennyson in Ben 10: Alien Force - Vilgax Attacks [The Animated Miniseries]

Erik Kimerer

as Big Chill in Ben 10: Alien Force - Vilgax Attacks [The Animated Miniseries]

Jason Marnocha

as Vilgax in Ben 10: Alien Force - Vilgax Attacks [The Animated Miniseries]

Erik Kimerer

as Big Chill in Ben 10

Erik Kimerer

as Arctiguana in Ben 10

Frank Todaro

as Whampire in Ben 10

John DiMaggio

as Whampire in Ben 10

David Tennant

as Professor Paradox in Ben 10: Alien Force - Vilgax Attacks [The Animated Miniseries]

Zach Aguilar

as Cooper Daniels in Ben 10: Alien Force - Vilgax Attacks [The Animated Miniseries]

Eric Bauza

as Cooper Daniels in Ben 10: Alien Force - Vilgax Attacks [The Animated Miniseries]