Lettie

Lettie Mae Thornton, played by Adina Porter, is Tara Thornton's mother, a human and not a vampire. She is an alcoholic who abused her daughter. After persuading Tara to pay for a sham exorcism meant to cure her addiction, she becomes a devout Christian. In the second season she helps Lafayette rescue Tara from Maryann, and in the third she misses Tara's suicide attempt and is found to be having an affair with her church's married reverend.