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)