Is portrayed by Val Kilmer in Wonderland (2003).
He was so successful as a performer in the adult film industry, and he was in such high demand, if it wasn't for his voracious cocaine habit, he would have been a millionaire while still in his 30s.
His mother's maiden name was Barton.
Did not tell the porn industry that he was HIV positive and continued to star in films. Even went so far as to go to Europe to make porno movies because they didn't know he was HIV positive.
Appeared in 2,274 pornographic films, more than anyone else.
In the early 80s he was a frequent visitor to the Hollywood Hills.
He often claimed to be a college graduate with majors ranging from Physical Therapy to Polical Science. The truth was that he never graduated from high school having dropped out of public school in the ninth grade.
Nicknamed himself Johnny "Cash" Holmes during the early years of his porn career because he would only take his payments in cash since he was supposedly swindled out of $100 by a bad check for his very first porn loop.
His Los Angeles quadruple-murder trial in 1982, in which he was acquitted, was the first trial in American Jurisprudence where videotape was introduced as evidence.
Since having lost his virginity at age 12 to a 36-year-old friend of his mother he is said to have copulated with more that 14,000 women in his life, both on and off screen.
Holmes made about 2000 full-length hardcore features, including a 3-D thriller and a film about his life story - Exhausted: John C. Holmes, the Real Story (1981) (V).
Diagnosed with AIDS in 1985.
The film Boogie Nights (1997) is based on Holmes' life.
On June 26, 1982, he was found not guilty of the infamous Wonderland gang ("Four on the Floor") murders.
He would always sing Gordon Lightfoot's song "If You Could Read My Mind" to his girlfriend Dawn Schiller. The song is played in the movie Wonderland (2003) at the end of the film.