answers: Kaley Cuoco
context: Blaze Berdahl Blaze Autumn Berdahl (born September 6, 1980) is an American actress, singer, rapper, voice-over actor, announcer, and narrator. She is perhaps best known for her roles as Lenni Frazier in the children's television series "Ghostwriter" and Ellie Creed in the film "Pet Sematary" (1989). Berdahl was born in New York City, the youngest daughter of Rita, a teacher, and Roger Berdahl, an actor. She was born just one minute after her twin sister, Beau Dakota Berdahl, a talent agent. She also has an older brother, Sky Ashley Berdahl, a periodontist. Berdahl was a student at Bucknell University in </s> had a small role in the movie "Stardom (2000)" playing an overenthusiastic VJ on a parody of the Canadian music channel MuchMusic. After moving to Los Angeles, Walsh got a starring role in the ABC mid-season replacement "Sons and Daughters", which premiered March 7, 2006 on ABC. The show was canceled in late-April after ten aired episodes. Walsh appeared on an episode of "Veronica Mars" and also had a minor role in the film "Disturbia". She portrayed Katie in the original pilot for the sitcom "The Big Bang Theory", but was replaced by Kaley Cuoco (as Penny) in the second </s> retained in both pilots were Leonard (Johnny Galecki) and Sheldon (Jim Parsons), who are named after Sheldon Leonard, a longtime figure in episodic television as producer, director and actor. Althea (Vernee Watson) was a minor character that appeared in both pilots. The first pilot included two female lead characters who were not used in the second pilot. The characters were Canadian actress Amanda Walsh as Katie, "a street-hardened, tough-as-nails woman with a vulnerable interior," and Iris Bahr as Gilda, a scientist colleague and friend of the male characters. Sheldon and Leonard meet Katie after she breaks up with a boyfriend
question: who has played penny on the big bang theory