Erin Margaret Murphy (born June 17, 1964) is an American actress, who is best known for her role as young Tabitha Stephens in the television sitcom Bewitched, in 103 episodes from the show's third season (in 1966) to the last original episode in 1972. For the first season, she shared this role for 18 episodes with her fraternal twin sister, Diane, as they were of similar appearance and stature. As they got older and looked less alike, only Erin played the role. Both sisters are the last surviving original actors of Bewitched.
Following Bewitched, Murphy guest-starred on shows such as Lassie, appeared in over 100 commercials, and modeled for Hang Ten swimwear. She was an El Toro High School cheerleader and homecoming queen during her senior year. She graduated from El Toro High School in 1981. Murphy has worked as a casting director, makeup artist, fashion stylist, acting teacher, motivational speaker, and stunt double for actress Virginia Madsen. Since 2014, Murphy has been co-owner of Slim Chillers, a company that makes low-calorie frozen vodka martini pops.
Murphy has worked as a television host and correspondent (TVLand, Fox Reality Channel, TVGasm.com, and E!) and as the on-air moderator for Allergan Medical. She has also been an infomercial host (Ab Shark for Thane, Bun Shaper for Emson, SomaTrac Inversion Table). Murphy is the host of Disney Family.com's Parentpedia.

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