Television
* Buffy the Vampire Slayer (1997-2003): As Cordelia Chase, one of the series' main characters. This was her breakout role, and she reprised the role in the spin-off series Angel.
* Angel (1999-2004): As Cordelia Chase, a series regular for four seasons.
* Veronica Mars (2004-2007): As Kendall Casablancas, the recurring role of a wealthy and manipulative student.
* The Lying Game (2011-2013): As the recurring character Emma Roberts, a manipulative and conniving socialite.
* The Expendables (2014): As the recurring character Lady Deathstrike in the web series.
* The Girl on the Train (2017): As the recurring character Martha in the television series.
* Supernatural (2017): As the recurring character The Reaper in the television series.
* The Boys (2020-present): As the recurring character The Female.
* Charmed (2018-2022): As the recurring character "The Source of All Evil" in the reboot.
Movies
* The Last Supper (1995): One of her first roles.
* Some Kind of Wonderful (1987): A minor role in a coming-of-age story.
* The Bride of Chucky (1998): As the character of the Bride of Chucky.
* The Expendables (2010): As the character of Lady Deathstrike.
* The Last Supper (1995): One of her first roles.
* The Rage: Carrie 2 (1999): A teen horror film.
* The Scorpion King (2002): A fantasy film.
* The Kiss (2003): A romantic comedy.
* The Devil's Advocate (1997): A supernatural thriller.
* The Cabin in the Woods (2011): A horror comedy.
Other Projects
* Voice acting: Carpenter has voiced several characters in animated series and video games.
Carpenter has also had a recurring role in "The George Lopez Show", as well as guest appearances in several television shows.
This list is not exhaustive but includes some of her most prominent work. She remains an active actress in film and television.