Percy's roles from the first half of the 1970s consisted largely of bit parts, many of which were uncredited, but his career really took off in the mid 70s, when his good looks and muscular physique earned him roles in a series of erotic Emanuelle films. He also landed a notable role in Il Casanova di Federico Fellini (1976) as a handsome prince who becomes the sole male conquest of Casanova (Donald Sutherland), but the part ended up deleted from the final version of the film.
Percy spent the rest of the decade appearing in a series of action movies and comedies, and although he was never cast in leading roles, he played substantial parts and was even billed with the coveted "and with" (or similar variants) in the credits. Unfortunately, his career more or less fizzled out at the start of the 1980s. He did continue to act in films until the end of the decade, but the roles he received were both fewer and smaller, and frequently uncredited as well.
There are no known biographical details about Percy other than a quote from Fellini that he was an American dancer.
As there are some noticeable gaps in his filmography, I'm certain that there are quite a few other roles to be found for Percy!
- L'uomo più velenoso del cobra .... Police inspector (credited)
- Karzan, il favoloso uomo della jungla .... Expedition bearer / Various tribesmen (uncredited)
- Mosè (TV mini-series) - ep. 1 .... Officer leading the slaughter of Levi's tribe (uncredited)
- Paolo il freddo .... Ambassadorial guest (uncredited)
- Emanuelle nera n° 2 .... Fred Morgan (credited)
- Emmanuelle bianca e nera .... Elias (credited)
- Il Casanova di Federico Fellini .... Prince Ismail (uncredited - scenes deleted)
- Il signor Robinson, mostruosa storia d'amore e d'avventure .... Mandingo (credited)
- Anno zero - Guerra nello spazio .... Dr. Max Wright (credited)
- Emanuelle e gli ultimi cannibali .... Salvador (credited)
- Per amore di Poppea .... Abdullah (credited)
- 6.000 km di paura .... Alì (credited)
- Il grande attacco .... Soldier killed in ambush (uncredited)
- Nel regno di Napoli .... American soldier (credited)
- Piedone l'africano .... Bodo's father (uncredited)
- Duri a morire .... Wabu (credited)
- Sam & Sally (TV series) - season 2, ep. 3: "I collezionisti" .... Pattison (credited)
- Dagobert .... Servant at the feast (uncredited)
- Pope John Paul II (TV movie) .... Cardinal (uncredited)
- Joan Lui - Ma un giorno nel paese arrivo io di lunedì .... Waiter in train dining car (uncredited)
- Il burbero .... Henchman (credited)
- Rent-a-Cop .... Drug buyer (credited)
- Kamikaze (TV movie, 1986)
- Run for Your Life (1988)