Carolyn Lawrence
Carolyn Lawrence (born February 13, 1967) is an American actress and voice actress, who is known for her long-running voice role as Sandy Cheeks on the Nickelodeon TV Show SpongeBob SquarePants. Description above from the Wikipedia article Carolyn Lawrence, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Known for
The SpongeBob Movie: Sponge Out of Water 
The SpongeBob Movie: Sponge on the Run 
SpongeBob SquarePants 
The SpongeBob Movie: Search for SquarePants 
The SpongeBob SquarePants Movie 
Jimmy Neutron: Boy Genius 
Plankton: The Movie 
Saving Bikini Bottom: The Sandy Cheeks Movie 
Little Man Tate 
SpongeBob SquarePants Presents the Tidal Zone 
Kreepaway Kamp