Aún no disponemos de datos de Harold Sylvester en la Base
Filmografía parcial 
| All -- Movies -- TVmovie-Video -- TV Episodes | ||
| - | INNERSPACE (1987) .... Pete Blanchard | |
| - | SPACE RAGE (1985) .... Max Bryson | |
| - | TV Serie: TODAY'S F.B.I. (1981-1982) .... Dwayne Thompson | |
| - | SIX MILLION DOLLAR MAN 4/077 THE INFILTRATORS (1977) .... Tollombe | |
| - | NIGHT OF THE STRANGLER (1972) .... Jim Bunch [como Harold Sylvester Jr.] | |
