Ms. Kellermann is an alumna of Randolph-Macon Woman's College, from which she received a bachelor's degree in English literature. She also studied acting with Sanford Meisner at the Neighborhood Playhouse. In 1979, she made her Broadway debut in the play 'Last Licks', for which she received a Theatre World Award. She played Greta Gravis, mother of the character Latka, played by Andy Kaufman in the comedy series, Taxi (1978). Aside from theater and television, she provided her talents to many supporting roles in the films Beetlejuice (1988), Elvira: Mistress of the Dark (1988), Death Becomes Her (1992), Last Holiday (2006) and Sweet, Sweet Lonely Girl (2016).