Shepard was born in New York City, New York. In the late 1980s, Shepard was a lead singer and percussionist in the short-lived all-girl group, American Girls.
When that group ended, she moved into acting. Appearing in numerous motion picture and television series, Shepard is best known for playing the character of Divatox, an evil pirate queen whose goal was to rule the world in the children's series, Power Rangers Turbo, as well as two roles on Star Trek: Deep Space Nine: the Benzite ensign Hoya and Lauren, one of the genetically enhanced humans.
She played Zena in the film Scanner Cop.
Shepard and actress Daryl Hannah co-created two board games, "Love It or Hate It" and "LIEbrary," the latter having been previewed by Hannah on The Ellen Degeneres Show in December 2005.
Shepard currently lives with a husband and two daughters in Los Angeles, California. She is good friends with actress, Daryl Hannah.
- Turbo: A Power Rangers Movie (1997)
- Scanner Cop (1994)
- Star Trek Deep Space Nine (1996-1998)
- Power Rangers In Space (1998)
- Power Rangers Turbo (From The Darkest Day to Chase into Space) (1997))