Original: Kristen Nöel '' Kristy '' Swanson ( born December 19 , 1969 ) is an American actress best known as the original Buffy Summers in the 1992 film Buffy the Vampire Slayer .
Simplified: Kristy Swanson ( born Renee Kristen Swanson on December 19 , 1969 ) is an American actress .