Dawn learned that her boyfriend Ned (Kurt Robin McKinney) had once slept with her mother! I knew I had to do the best job [possible]". She departed General Hospital the next year, after a guest appearance on another ABC series, the comedy drama Doogie Howser, M.D.. In 1991, Case appeared in various other television series, including Diplomatic Immunity, Beverly Hills, 90210, Parker Lewis Can't Lose and Cheers. From November 1992 to 1993 Case stepped into her second soap opera role, as Debbie Simon on the CBS Network drama As the World Turns. Case has stated that she loved the role, and wanted to stay on to explore more into the character of Debbie who was a "manic depressive", an issue that hadn't been covered on daytime television. During this, she also appeared on the CBS crime drama Silk Stalkings as Bonnie Abagail. In 1994, a year after departing from As the World Turns, she became a regular on the primetime soap opera Valley of the Dolls, which was based on the romantic novel of the same name. In 1997, Case had a role in the HBO film Breast Men. Previously, she turned down a larger role in the film due to being uncomfortable topless on-screen. Instead, she accepted a smaller, clothed role. In 2005, Case appeared in an independent film entitled Carpool Guy with The Young and the Restless co-star Lauralee Bell. Also that year, she starred in the short film Wentworth. The film was about a man named Wentworth who had to choose between the women of his dream, Emily, and the "perfect" woman in his dreams, "Dream" Emily, both played by Case. It was directed by Steve Suettinger, and produced independently by students at the University of Southern California. In 2007, Case starred with Debra Hopkins in her second short film, Repressions, which ran for 24 minutes. Produced by Roundhay Garden films and directed by Adam Kargman, it was filmed from May 14 to July 16, 2006. In the film, Janie (Case) is being tricked by her therapist into believing she has repressed memories of sexual child abuse. The film was met with critical acclaim from independent movie reviewers who found her performance "mesmerizing" and "stunning". Oscar Award nominee Jesse Friedman heavily praised the film, and encouraged people to watch it. In 2009, Case appeared on an episode of the sex comedy web series Poor Paul which was