In the 1970s, McCay appeared in Eleanor and Franklin: The White House Years, How the West Was Won, and The Lazarus Syndrome.
Peggy Lee | Peggy Guggenheim | Peggy Seeger | Peggy Rockman Napaljarri | Peggy Olson | Peggy Noonan | Peggy Ashcroft | Peggy Thorpe-Bates | Peggy Hopkins Joyce | Peggy Guggenheim Collection | Peggy Griffin | Winsor McCay | Peggy Sue Got Married | Peggy Sue | Peggy Glanville-Hicks | Peggy Ann Bradnick | Peggy Shippen | Peggy Parratt | Peggy Michel | Peggy McCay | Peggy Lee Leather | Peggy Lee (cellist) | Peggy Fortnum | Peggy Fleming | Peggy Eisenhauer | Peggy Connelly | Peggy Bulger | Peggy Taylor | Peggy Sue (singer) | Peggy's Theme |
In 1962, she was cast in a recurring role as Mary Rose in the ABC/Warner Brothers sitcom, Room for One More, with Andrew Duggan, Peggy McCay, Tim Rooney, and Ronnie Dapo.
Peters was the third actress to play the role (after daytime veteran Peggy McCay and actress Bonnie Bartlett), but she became the actress most identified with the role.