1963, Donahue was cast in an episode of NBC's short-lived modern Western series, Redigo, with Richard Egan as the rancher Jim Redigo; then in 1964, she appeared as Melanie in "The Secret in the Stone" in the NBC medical drama dealing with psychiatry, The Eleventh Hour, starring Jack Ging and Ralph Bellamy. Additionally, in 1963, she played Letty May in the episode "The Burning Tree" on Have Gun Will Travel. In the 1964–65 broadcast season, Donahue costarred as Joan Randall, the daughter of Walter Burnley, played by John McGiver, on the CBS sitcom Many Happy Returns about the complaint department of a fictitious Los Angeles department store. In 1966, she guest-starred on the TV series A Man Called Shenandoah, episode 8, "Town On Fire". She guest-appeared on Star Trek in the second-season episode "Metamorphosis" (1967) as commissioner Nancy Hedford. Donahue portrayed Miriam Welby in 17 episodes of The Odd Couple (1972–75). Donahue appeared in a 1981 episode of One Day at a Time, as Alex's mother Felicia. Donahue portrayed the sister of Sister Bertrille (Sally Field) in three episodes of ABC's The Flying Nun (1968–70). In 1977, she appeared in an episode of the ABC crime drama The Feather and Father Gang. In 1978, Donahue starred in the NBC sitcom Please Stand By. In 1979, she appeared on Diff'rent Strokes as a fiancée to Mr. Drummond in season 1. In 1984, she made an appearance as Mrs. Broderick, the mother of a teenage drug addict on the last season of Happy Days. In 1987, she played the title character's mother in the short-lived Fox series The New Adventures of Beans Baxter. In 1988, she appeared in a Newhart episode ("Courtin' Disaster"), and she appeared in a 1989 episode of The Golden Girls as the newest wife of Dorothy Zbornak's ex-husband, Stan. 1990s and later In 1990, she played Bridget, a Beverly Hills clothing-store manager, in the film Pretty Woman. Donahue played Gladys, the mother of Chris Peterson (Chris Elliott), in all 35 episodes of the sitcom Get a Life (1990–92), and had a recurring role as Rebecca Quinn on the CBS drama series Dr. Quinn, Medicine Woman. In 1991, she portrayed the "Orphanage woman" in Freddy's Dead: The Final Nightmare. In 1992, she voiced the mother on the Fox Kids animated series Eek! the Cat. In 1994, she made an appearance as Aunt Lillian in "The One Where Nana Dies