[1][2][3][4][5] Known for her waifish appearance, Heflin also acted in various New York stage musicals prior to her film career, such as Fiddler on the Roof, Hair, and Jesus Christ Superstar.
[6] After appearing in a number of stage musicals in New York in the 1960s and 70s, Heflin made her transition to the small screen in the soap opera The Doctors.
[7] After working with director Robert Altman in the comedy of manners A Wedding (1978), Heflin was handpicked to replace actress Sandy Dennis in the role of Sheila Shea, a rock singer who dates an older Greek-American businessman after meeting him through a videotape computer dating service, in Altman's film A Perfect Couple (1979).
[1] In the 1980s, Heflin appeared in two TV movies: Playing for Time (1980), a drama set in a concentration camp starring Vanessa Redgrave, and The Gentleman Bandit (1981), which followed a priest falsely accused of a string of armed robberies.
[2] In 1982, Heflin reunited with Altman for the Broadway production of Ed Graczyk's play Come Back to the Five and Dime, in which she played Edna Louise, a member of an all-female fan club named the Disciples of James Dean.