Victor Wong Chi-Keung as Grandpa Mori Shintaro

Max Elliott Slade as Jeffrey 'Colt' Douglas

Sean Fox as Samuel 'Rocky' Douglas Jr.

J. Evan Bonifant as Michael 'Tum Tum' Douglas

Caroline Junko King as Miyo

Dustin Nguyễn as Glam

Alan McRae as Samuel Douglas Sr.

Margarita Franco as Jessica Shintaro-Douglas

Jason Schombing as Vinnie

Angelo Tiffe as Slam

Sab Shimono as Koga

Don Stark as Umpire

Kellye Nakahara as Nurse Hino

Scott Caudill as Darren the Bully

Tommy Clark as Keith

Jeremy Linson as Evan

Brian Wagner as Gerald

Maital Sabban as Lisa DiMarino

Gino Dentie as Night Club Manager

Marcus Giamatti as Announcer

Jill Ito as Ticket Clerk

Michael Paciorek as First Base Umpire

DonnaMarie Recco as Hot Dog Vendor

Joey Travolta as Mustangs Coach

Robert Miano as Shuttle Driver

Glen Chin as Nurse Shibuya

Killer Khan as Ishikawa

Tso Shiao-Hu as Young Mori

Kazuaki Naruse as Young Koga

Syunichiro Yunoki as Young Grand Master

Hachiro Yamauchi as Ninja Master

Toshiyo Matsunaga as Miyo's Mother

Yoshiko Kamiya as Lady in Limousine

Katsumi Honda as Chauffeur

Shogo Nakajima as Jail Guard

Kyogi Kamui as Koga's Henchmen

Seigen Nakayama as Koga's Henchmen

Ôfuji as Sumo Wrestlers

Hayabusa Tenkomori as Sumo Wrestlers

Shinoburyû as Sumo Wrestlers

Kasugia as Sumo Wrestlers

Naoki Fuji as Mugger

Kensuke Goto as Ninja Masters

Yousyu Kondo as Yakusas

Masaki Kiryu as Ninjas

Hideki Chiba as Ninjas

Norihito Yagami as Ninjas

Kazuya Matsui as Ninjas