Question: Who played eric's sister on that 70 show?

context: Lisa Robin Kelly (March 5, 1970 – August 15, 2013) was an American actress. She was best known for her role as Laurie Forman on the TV series "That '70s Show".
question: Who played Eric's sister on That 70's show for seasons 1-5?
short_answers: Lisa Robin Kelly
context: Kelly played Laurie Forman, the older sister of Eric Forman, on "That '70s Show". She abruptly left the show midway through the third season, and her character was written out of the show to "attend beauty school". She returned to the show in the fifth season for four episodes but was replaced with Christina Moore in the sixth season. In an interview with ABC News, she admitted that "with "That '70s Show" I was guilty of a drinking problem, and I ran", blaming her alcoholism on the loss of a baby.
question: Who played Eric's sister on That 70's show for season 6?
short_answers: Christina Moore

Answer: American actress Lisa Robin Kelly is best known for her role as Laurie Forman on the TV series "That '70s Show". She abruptly left the show midway through the third season, and her character was written out of the show to "attend beauty school". She returned to the show in the fifth season for four episodes but was replaced with Christina Moore in the sixth season.