McKinsey played Iris Carrington on “Another World,” broadcast on NBC From 1970 to 1979. She played the same role in 1980 and 1981 on the NBC spinoff “Texas”. From 1984 to 1992 she played Alexandra Spaulding on CBS's “Guiding Light". In 1992 she decided she wanted to quit acting. She had an "out" clause in her contract making it legal to leave the show. In 1994 she returned to acting briefly as Myrna Slaughter on ABC's “General Hospital”.