The Deadpit (1989)
CHARACTER: Dr. Gerald Swan
DIRECTED BY: Brett Leonard
Imperial Entertainment

Zombies rise up from a terrifying pit beneath a notorious mental asylum to do the bidding of the evil Dr. Ramzi. Twenty years ago the crazed doctor was walled up alive after someone discovered his horrific experiments involving formaldehyde and illegal lobotomies. Following each experiment, the doctor would casually toss the dead victims into the pit. While his captor slowly bricks him up, Ramzi swears that he will have revenge.