Sinister Simian

Sinister Simian appeared in season 3 of 1995 TV series called Mighty Morphin' Power Rangers. Katherine Hillard's chimp Kelly was transformed into Sinister Simian by Lord Zedd. Sinister Simian's scratches would reflect her face on the Ranger's chests. Alpha 5 tried to fight her but she scoffed at his lack of battle prowess. Returned to normal with an antidote missile from Blue Shogunzord.

She was seen in the Prince Gasket's Machine Arena to watch the Jason Lee Scott battle other competitors before fighting Tommy Oliver.

She was seen playing the piano in the tavern on Onyx during Andros' visit.

Sinister Simian was present at the auction for the Pink Quasar Saber at the Onyx Tavern.