You've not heard of Felicia Day? Creator of Geek & Sundry network? The Guild?

From Wikipedia

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Kathryn Felicia Day[1] is an American actress, comedian, and writer. On TV, she played the character "Vi" on the series Buffy the Vampire Slayer, Dr. Holly Marten in Eureka and currently has a recurring role as Charlie on Supernatural. She has acted in movies such as Bring It On Again and June, as well as the Internet musical Dr. Horrible's Sing-Along Blog. She is the star, writer, and producer of the original web series The Guild, a show loosely based on her life as a gamer. She also wrote and starred in the Dragon Age web series Dragon Age: Redemption. Day was a member of the board of directors of the International Academy of Web Television beginning December 2009 until the end of July 2012