Karen Bernstein (born May 25, 1969) is a retired Canadian voice actress who is best known to many in North America as the original voice of Sailor Mercury in the Canadian dubbing of the first two seasons of Sailor Moon. She was replaced by Liza Balkan.
Bernstein is also known for voicing Hello Kitty in the early 1990s, and for portraying Tara Belle and Jett in Beverly Hills Teens in the 1980s.
- Noddy's Toyland Adventures (1992-1993) - Tessie Bear
- Pippi Longstocking (1997-1998) - Mrs. Ingrid Settergren
- Pippi Longstocking (1997) - Mrs. Ingrid Settergren
- Hello Kitty and Friends (1989-1994) - Hello Kitty
- Sailor Moon (1992-1993) - Amy Anderson / Sailor Mercury (DiC Dub)
- Sailor Moon R (1993-1994) - Amy Anderson / Sailor Mercury (DiC Dub)
- Landlock (1996) - Additional Voices
- Sailor Moon R: The Promise of the Rose (1993) - Amy Anderson / Sailor Mercury (Pioneer Dub)
- Sailor Moon S: Hearts in Ice (1994) - Amy Anderson / Sailor Mercury (Pioneer Dub)
- Sailor Moon Super S: Black Dream Hole (1995) - Amy Anderson / Sailor Mercury (Pioneer Dub)