Aún no disponemos de datos de John Hefferman en la Base
Filmografía parcial 
| --<>-- | ||
| All -- Movies -- TVmovie-Video -- TV Episodes | ||
| - | DRACULA (2020) .... Jonathan Harker | |
| - | MYSTERYDISC: MURDER, ANYONE? (1982) .... Thomas Pembroke | |
| - |  GOD TOLD ME TO (1977) .... Bramwell | |
| - | LIVES OF BENJAMIN FRANKLIN, THE (1974) | |
