Iris Rainbird is a character appearing in the episode The Killings at Badger's Drift.
Iris is the mother of Dennis Rainbird and known as a nosy Parker. She used the "hide" in her house to keep a detailed account of her neighbours movements and blackmailed people with their secrets.
She lived very comforatbly on the proceeds of her neighbors pecadillos, and was perfectly happy to bleed her victims dry. When she observed the actions of Katherine Lacey, she thought it would be the making of a fortune. Lacey, however, was not interested in being victimized. She arrived at the house, slashed Dennis' throat and then hacked Iris to death with such ferocity, the head was nearly severed from the body.