Casey Kasem

as Shaggy (voice)

Frank Welker

as Fred / Scooby-Doo (voice)

Grey DeLisle

as Daphne (voice)

Mindy Cohn

as Velma (voice)

Kelly Hu

as Miyumi / Miss Mirimoto (voice)

Kevin Michael Richardson

as Sojo / The Black Samurai (voice)

Brian Cox

as Green Dragon (voice)

Sab Shimono

as Mr. Takagawa (voice)

Keone Young

as Matsuhiro (voice)

Gedde Watanabe

as Kenji (voice)

George Takei

as Old Man Samurai (voice)