- Bruce Lee
- Self / Hai Tien (archive footage)
- Kareem Abdul-Jabbar
- Mantis
- Peter Archer
- (archive footage)
- Sun-Man Bae
- First Tung (scenes from The Story)
- Robert Baker
- (archive footage) (as Bob Baker)
- Pierre Berton
- Self
- Linda Lee Cadwell
- Self
- Jackie Chan
- (archive footage)
- Yuan Chieh
- Fighter accomplice
- James Coburn
- (archive footage)
- Doug Copsey
- Narration
- James Franciscus
- Mike Longstreet
- James Garner
- Philip Marlowe
- Ted Hanulak
- Sensei
- Sammo Kam-Bo Hung
- (archive footage)
- Hee-Soo Hwang
- Sister (scenes from The Story)
- In-shik Hwang
- First Floor Guardian
- Dan Inosanto
- Third Floor Guardian
- Han Jae Ji
- Self / Quarter Floor Guardian
- Bill Katz
- American Fighter accomplice (scenes from The Story)
- Byung-Joo Kim
- Tien
- Hak-Kyu Kim
- Hai Tien (scenes from The Story)
- Taky Kimura
- Self - Interview
- George Lazenby
- Fighter
- Kang-Kook Lee
- Wong (scenes from The Story)
- Joe Lewis
- (archive footage)
- John Little
- Hai Tien
- Bey Logan
- (archive footage)
- Mako
- (archive footage)
- Nora Miao
- (archive footage)
- Andre Morgan
- (archive footage)
- Chuck Norris
- (archive footage)
- Carroll O'Connor
- (archive footage)
- Se-kyn Oh
- Second Thung (scenes from The Story)
- Tong-il Pang
- The Boss (scenes from The Story)
- Sung-Woo Park
- Yuan
- Peter Mark Richman
- Duke Paige
- John Saxon
- Self (scenes from Enter the Dragon)
- Mike Stone
- (archive footage)
- James Tien
- Fighter accomplice antagonist
- Robert Wall
- (archive footage) (as Bob Wall)
- Van Williams
- (archive footage)
- Biao Yuen
- (archive footage)
- Ho-You Yun
- Kid (scenes from The Story)
- Jiddu Krishnamurti
- Self
