Mary Anderson was portrayed by many actresses including Nancy Stephens, later known for her role in the Halloween movies, Barbara Stanger played the role the longest from 1976 to 1980. Actress Melinda Fee was the last character to play the role from 1981 until the character was killed by the Salem Strangler in 1982.
Bob Anderson was played by Mark Tapscott from July 18, 1972 to March 28, 1980, from May 26 to July 27, 1978 he was briefly replaced by Dick Gitting. Bob and his wife Phyllis came to Salem in 1972. After Scott Banning died they took his widow Julie Olson in their home and Bob fell in love with her. He divorced Phyllis and married Julie. In 1976 also that marriage fell apart. In 1978, he married Linda Patterson but divorced her as well in 1980 due to her infidelities and attempts to take over his company. He had heart problems and Phyllis came back to Salem to take care of him. They rekindled their relationship and became engaged. Before they could remarry Bob died of a heart attack. In his will, he left part of his estate to Melissa Anderson, Linda's daughter by Jim Phillips, whom he had adopted.
Samantha Evans was portrayed by Andrea Hall, the twin sister of fellow Days of Our Lives actress, Deidre Hall, who portrays Samantha's twin sister, Marlena. Marlena named her first daughter, Samantha, after her sister. Samantha appeared from 1977 to 1980, with a brief reprisal in 1982, when the character was killed by the Salem Strangler. Deidre briefly portrayed Samantha in newly created flashbacks 1992 and 2008, respectively.