Simplify the following text for a Grade 10 native English-speaking person.
Original: She is best known for playing the character Cordelia Chase in the television series Buffy the Vampire Slayer and its spin-off Angel , for which she was nominated for four Saturn Awards .
Simplified: She is best known for playing the character Cordelia Chase in the television series Buffy the Vampire Slayer and its spin-off Angel .