Deirdre L. Imershein (born 26 July 1963; age 61), originally credited as Deirdre Imershein, is an actress who played Joval in the Star Trek: The Next Generation third season episode "Captain's Holiday" and Watley in the Star Trek: Deep Space Nine fifth season episode "Trials and Tribble-ations".
Imershein has also appeared in Dream On (1990), ER (1991, with series regular Joshua Harris), Cheers (1993, with Kirstie Alley, Kelsey Grammer, Keene Curtis, and Gordon Clapp), and Silk Stalkings (1998, with Charlie Brill). She was a regular on the drama series Eden (1993, with Barbara Alyn Woods and Robert Curtis Brown).
Imershein was featured in films such as the action film Blackbelt (1992, with Matthias Hues and Richard Beymer), Scanner Cop (1994, with Mark Rolston, Richard Lynch, James Horan, Hilary Shepard Turner, Cyndi Pass, Wayne Grace, and Jeff Pruitt), the drama Private Lessons: Another Story (1994), and Skyscraper (1996).
In 2001 she produced the documentary Scene Smoking: Cigarettes, Cinema & the Myth of Cool which featured René Echevarria. In 2008, Imershein worked as producer on the short film Brushes with Life: Art, Artists and Mental Illness.