Marianne Armitage

Marianne Armitage is a supporting antagonist of the 2017 horror movie Get Out. She is a member of the secretive Order of the Coagula and the former matriach of the Armitage Family.

She was portrayed by Betty Gabriel (when possessing Georgina).

Past
Marianne is the wife of Roman Armitage, the mother of Dean Armitage, the mother-in-law of Missy Armitage, and the grandmother of Rose Armitage and Jeremy Armitage.

After learning that Roman lost in the 1936 Olypmics to the famous Jesse Owens, Marianne shared Roman's hatred towards black people and became a member the Order of the Coagula for her husband to perfect a process - kidnapping black people in order to brainwash them and to implant the brains of old relatives and friends into the bodies of the far younger and fitter black people. As Roman and Marianne grew old, Dean (taking over as the new leader of the Order) used the family's groundskeeper Walter and housekeeper Georgina as new vessels for the dying Roman and Marianne. Ever since then, Marianne used Georgina's body to keep the house clean for years until the film's events.

Death
As Rose took her boyfriend Chris Washington as the next target for her family's operations, Dean and Jeremy took Chris into the basement where they tie him to a chair. They start a video tape in which Roman (in his old body) explains the brain transplant procedure developed by his family and that he took Walter's body as his new vessel. Chris realizes that Rose deliberately lured him into the home of her family so that Dean and Missy can capture him and to "sell" his body to one of their elder friends whose mind will be transplanted into Chris.

Fortunately, Chris was able to free himself before killing Dean, Missy and Jeremy. As Chris attempts to escape in a car, he accidentally hits Georgina and decides to bring her along out of guilt. However, Chris soon realizes too late that Marianne is controlling Georgina's body and wants to kill him to avenge her family. This resulted a scuffle between the two which caused the car to crash, ultimately killing Georgina and Marianne. Roman and Rose would later meet Marianne's fate after Chris frees Walter from his trance with a camera flash, resulting Walter to fatally shoot Rose and himself, ending the Armitage family's plans for good.