Kellermann began her on-screen acting career appearing in episodes of Starsky and Hutch (1975) and Laverne & Shirley (1976), and three episodes of Taxi (1978) (she played Greta Gravas, mother to the character Latka, played by Andy Kaufman). After consecutive television work, Kellermann provided parts in the classic 1980s films Beetlejuice (1988) and Elvira: Mistress of the Dark (1988). Latter film work includes roles in Last Holiday (2006) and In the Family (2011).

Please note: It was not a small part in Elvira, Mistress of the Dark – Watch the film ! I said this before. Beetlejuice was relatively small, but in a classic scenes. Also – Last Holiday was a supporting lead – the reviewer should watch the films!