Alice Hirson
Alice Hirson is an American actress best known for her roles on television. She began her career on stage, before roles on the daytime soap operas. She is best known for her roles as Mavis Anderson in the CBS prime time soap opera, Dallas, and as Lois Morgan, the mother of title character on the ABC sitcom, Ellen.
Hirson was born as Alice Thorsell in New York City. In 1954, she met actor Stephen Elliott. Although Hirson and Elliott were longtime friends the two did not start a relationship until the 1980s. She began her career on offBroadway stage, before roles in 1960s plays Traveller Without Luggage and The Investigation.
Source: Wikipedia