Filmography from Gwyn Karon

Actor :

Dr. Black, Mr. Hyde, William Crain, 1976
An African-American scientist develops a formula to regenerate dying liver cells, but it has the unfortunate after-effect of turning him into an albino vampire with a mania for killing prostitutes. A tough police lieutenant investigating the murders discovers the existence of the dual-personality killer, and determines to bring him in. ...

Magnum Force, Ted Post, 1973
Dirty Harry is on the trail of vigilante cops who are not above going beyond the law to kill the city's undesirables....