Sarah Michelle Gellar is an actress who voiced the inquisitor Seventh Sister in several episodes of Star Wars Rebels. Her most famous non-Star Wars role is Buffy Summers from the classic TV series Buffy the Vampire Slayer.
Gellar has won several awards in her career including a Daytime Emmy Award for All My Children and several Teen Choice Awards for her roles in Buffy the Vampire Slayer and the film Scooby-Doo (where she played Daphne). Gellar is married to Freddie Prinze Jr. who voices Kanan in Star Wars Rebels.
Here is Gellar talking about Seventh Sister at New York Comic-Con. She also talks about other strong female characters in Star Wars in this clip.
Check out the entire list of women in 365 Days of Star Wars Women in the Women in Star Wars Index. It includes highlights from each post plus notes which posts include new 365 interviews with actresses, writers, artists, and more.