Question: What role did Kurt McKinney play in the 1986 American martial arts film directed by Corey Yuen?

Context paragraphs:
Ninja in the Dragon's Den: Ninja in the Dragon's Den () is a 1982 Hong Kong martial arts film written, choreographed and directed by Corey Yuen in his feature film directorial debut, and starring Conan Lee, Hiroyuki Sanada and Hwang Jang Lee.

Hero (1997 film): Hero () is a 1997 Hong Kong martial arts film written and directed by Corey Yuen.  The film stars Taiwanese-Japanese actor Takeshi Kaneshiro, established Hong Kong action stars from the Peking Opera School (Yuen Biao, Yuen Wah, Corey Yuen, Yuen Tak) and Hong Kong actresses Valerie Chow and Jessica Hsuan.  "Hero" is a remake of the 1972 film, "Boxer from Shantung".  The film was produced by then TVB chairwoman Mona Fong.

The New Legend of Shaolin: The New Legend of Shaolin (; released in the United Kingdom as Legend of the Red Dragon) is a 1994 Hong Kong martial arts film directed by Wong Jing and Corey Yuen, and produced by Jet Li, who also starred in the lead role.  The film was released in the Hong Kong on 3 March 1994.  This film showcases Hung Hei-kwun's exploits as a rebel against the Qing government.  This is one of two films in which Li and Miu Tse play a father-son duo, the other being "My Father Is a Hero."

DOA: Dead or Alive: DOA: Dead or Alive is a 2006 ensemble martial arts film loosely based on the Tecmo/Team Ninja fighting game series "Dead or Alive".  It was directed by Corey Yuen and written by J. F. Lawton, Adam Gross, and Seth Gross.

Kam Yuen: Kam Yuen, (born March 10, 1941 in Hong Kong), is a Chinese-born American martial arts expert who was the consultant and stunt coordinator for the original television series "Kung Fu".  He also played the roles of Wong Ti and Lin Wu in the series and was the double for Keye Luke, who played Master Po in the series.  Yuen was David Carradine's martial arts instructor.  He credited Yuen as the inspiration for the series' main character, Kwai Chang Caine; Carradine’s book, "The Spirit of Shaolin", was dedicated to Kam.  A grandmaster of Shaolin kung fu and known as the "Preying Mantis of North America" for his skill in the fighting style, Yuen’s film credits include the role of Red Band in "Circle of Iron", co-written by Bruce Lee which was produced posthumously and also stars Carradine, and "Project Eliminator".

Kurt McKinney: Kurt Robin McKinney (born February 15, 1962 in Louisville, Kentucky) is an American actor.  McKinney is perhaps best known for his role as Jason Stillwell in 1986 martial arts film "No Retreat, No Surrender".

No Retreat, No Surrender: No Retreat, No Surrender is a 1986 American martial arts film directed by Corey Yuen in his American directorial debut, and starring Kurt McKinney and Jean-Claude Van Damme.  The film was released in the United States on May 2, 1986.  McKinney performs as Jason Stillwell, an American teenager who learns karate from the spirit of Bruce Lee.  Stillwell uses these lessons to defend his martial arts dojo against Soviet martial artist Ivan Kraschinsky (Van Damme).

No Retreat, No Surrender 2: No Retreat, No Surrender 2 (also known as No Retreat, No Surrender 2: Raging Thunder) is a 1987 Hong Kong-American martial arts film directed by Corey Yuen, and starring Loren Avedon, Matthias Hues, Max Thayer and Cynthia Rothrock.  Despite its title, it does not have any connection to No Retreat, No Surrender, as it plots an independent story.  The film's original title is Raging Thunder.

Jet Li: Rise to Honor: Jet Li: Rise to Honor is a video game released in 2004 for the PlayStation 2.  The game features the likeness, voice acting and motion capture work of martial arts actor Jet Li, and features martial arts choreography by Corey Yuen.

Dragons Forever: Dragons Forever () is a 1988 Hong Kong martial arts action comedy film directed by Sammo Hung, who also co-stars in the film.  The film stars Jackie Chan and Yuen Biao.  The three actors, known colloquially as the "Three Brothers", had attended the famous China Drama Academy together, and became members of the Seven Little Fortunes.  This is the last film to date that all three have appeared in together.  It was directed by Sammo Hung and another former member of the Seven Little Fortunes, Corey Yuen (aka Yuen Kwai).  Yet another classmate, Yuen Wah, plays the film's main villain, while legendary kickboxer Benny Urquidez plays his right-hand man.  "Dragons Forever" was filmed between September and November 1987.

Supporting paragraphs: No Retreat, No Surrender Kurt McKinney
Answer: Jason Stillwell