Ella

Ella is the helper-monkey who appears as the main antagonist of the 1988 horror film Monkey Shines. She is a monkey who was subjected to intense experimentation by a rogue scientist named Geoffrey Fisher - who gives her to his former athlete friend, Alan Mann, after he is rendered quadriplegic after being run down by a truck.

Her vocal effects were provided by Frank Welker.

Role
Ella begins harmless enough, proving herself to be a clever and loyal companion as well as Alan's aid in a troubling time - however as the movie progresses Ella begins to grow much too close to Alan, becoming almost romantic in nature and displaying behavior far too humanlike for a normal monkey.

Her behavior also becomes extremely vindictive and homicidal, becoming a threat to Alan and those around himself: it's also shown via dream-sequences that Alan and Ella have begun to share a strange psychic bond with her beginning to tune into Alan's rage at his condition and the events around himself.

Ella's murder-spree begins when she kills Alan's Uncaring Nurse's pet bird after it attacks Allan in his bed. After hearing from another Doctor that he could be cured and that the surgeon who operated on misdiagnosed him, he becomes mad as his surgeon is a complete narcissist and incompetent. He tries to call his surgeon but learns that the doctor's out but can be reached at a different number. Upon hearing some of it, Alan Realizes his Surgeon is sleeping with his ex-girlfriend, who had dumped him for being quadriplegic. Ella gets revenge by setting her Cabin on fire with her and the Doctor in it. Then Ella killed Alan's unpleasant and domineering mother, by electrocuting her in the bathtub. Then, Ella killed Geoffrey, by injecting him with the very syringe of poison he had intended to use on her after becoming aware of her dangerous behavior - she then disables Melanie Parker, Alan's new love interest, before trying to light her on fire. Her attempts fail as Melanie is completely wet from a rain storm, so Ella decides to poison her with a second syringe that Geoffrey Brought.

In the climatic battle Alan is able to trick Ella into cuddling him via playing a tape-player with romantic music. When she does so Alan viciously bites Ella in the neck and throws her onto his wheel chair continuously, breaking her neck. Soon Alan gets the surgeory and begans to move on his own as he starts his life again with Melanie.