Elizabeth Hoffman (born February 8, 1927) is an American character actress. Hoffman was born in Corvallis, Oregon. Hoffman is best known for her regular role as Beatrice Reed Ventnor, Swoosie Kurtz', Sela Ward's, Patricia Kalember's and Julianne Phillips' characters' mother, on the NBC drama series "Sisters" (1991-1996). She also played the role of Catherine Langford in "Stargate SG-1".