Tony Curtis as Marvin Lazar

Jackie Earle Haley as Kelly Leak

Tomisaburō Wakayama as Coach Shimizu

Kanji Inoki as Self

Hatsune Ishihara as Arika

George Wyner as The Network Director

Lonny Chapman as Louis the Gambler

Matthew Anton as E.R.W. Tillyard III

Erin Blunt as Ahmad Rahim

George Gonzales as Miguel Agilar

Brett Marx as Jimmy Feldman

David Pollock as Rudy Stein

David Stambaugh as Toby Whitewood

Jeffrey Louis Starr as Mike Engleberg

Scoody Thornton as Mustapha Rahim

Abraham Unger as Abe Bernstein

Dick Button as Self

Regis Philbin as Harry Hahn

Kinichi Hagimoto as Game Show Host

Hugh Gillin as Pennywall

Robert Sorrells as Locke

Sonny Barnes as Mean Bones Beaudine

Michael Yama as Usher

James Staley as Network Man #4

Dick McGarvin as Network Man #3

Tak Kubota as Referee

Jerry Ziesmer as Eddie of Network

Gene LeBell as Mean Bones' Manager

Bin Amatsu as Arika's Father

Dean A. Okinaka as Manager

Victor Toyota as Interpreter

Yangi Kitadani as Fight Announcer

Marjorie Jackson as Waitress

Jerry Maren as Page Boy

Tim P. Sullivan as Network Man #2

Bob Kino as Moderator

Dennis Freeman as Network Man #5

Kyôko Fuji as Madam

Ginger Martin as Director's Aide

Daniel Sasaki as Band Leader

Don Watters as Network Man #1

George Sasaki as Demonstration Spectator (uncredited)