played Princess Ariel Baaldorf in the medieval adventure spoof TV series Wizards and Warriors, which lasted one season on the CBS network. Newhart and critical acclaim Duffy joined the main cast of the sitcom Newhart during its second season in 1983 as the Stratford Inn's self-infatuated, upper-class maid Stephanie Vanderkellen. She had initially made an appearance in the 14th episode of the first season of the series, playing the part of then-maid Leslie Vanderkellen's cousin. It is perhaps her most popular role and one she played for seven seasons. She earned Emmy Award nominations for Outstanding Supporting Actress in a Comedy Series for the role every year from 1984 through 1990. She also received a Golden Globe nomination and won three Viewers For Quality Television awards and five American Comedy Awards nominations for her work. During several episodes of Newhart, Duffy was pregnant. To hide it, she wore baggy clothes and stood behind furniture. She remains close to Bob Newhart. After Newhart After Newhart ended in 1990, Duffy briefly starred in the sitcom Baby Talk alongside George Clooney, but asked to be released after Clooney walked off the troubled set. The new producers accommodated her, allowing her to then join the cast of Designing Women in 1991. Baby Talk was then retooled and Duffy was replaced by Mary Page Keller. On Designing Women, she essentially replaced Delta Burke, the show's breakout star, who was fired after quarrels with producers. Duffy played Allison Sugarbaker, Burke and Dixie Carter's previously unseen cousin on the show. Duffy's tenure on the sitcom's sixth season turned out to be the highest-rated season in the show's history, partly because of the highly publicized cast additions of Duffy and Jan Hooks. However, because of conflicting ideas about her character, she was amicably released from her contract, thus leading her to be replaced by Judith Ivey. From 1993 to 1995, Duffy played Barb Ballantine on the short-lived comedy series The Mommies. Duffy played Lindsay Mercer, one of the failed buyers of Winfred-Lauder and the ex-wife of Lord Mercer on The Drew Carey Show. She has a recurring role on the Nickelodeon series Drake & Josh as Linda Hayfer, a high-school English teacher who despises Drake. She appeared on The Suite Life of Zack & Cody as the rich mother of Jason, a boy who goes on a date with Maddie Fitzpatrick (Ashley Tisdale). She made a brief appearance