Whether it's thanks to his three best-selling memoirs or [ Register or Signin to view external links. ] his research foundation, [ Register or Signin to view external links. ] Michael J. Fox is known around the world for his activism for Parkinson's Disease following his diagnosis in 1991. [ Register or Signin to view external links. ] But he's never played a character with the same illness -- until now. [ Register or Signin to view external links. ] On Tuesday's episode of [ Register or Signin to view external links. ] , Fox will guest-star as Alicia's newest opponent, Louis Canning, [ Register or Signin to view external links. ] a lawyer for a pharmaceutical company who uses his Parkinson's Disease to his advantage in the courtroom. [ Register or Signin to view external links. ] The 49-year-old actor has played characters with various medical conditions in recent years his [ Register or Signin to view external links. ] character, Dr. Kevin Casey, suffered from obsessive compulsive disorder; [ Register or Signin to view external links. ] he played a man with terminal lung cancer on [ Register or Signin to view external links. ] ; and he won an Emmy in 2009 for [ Register or Signin to view external links. ] playing the wheelchair-bound boyfriend of Tommy's ex on [ Register or Signin to view external links. ] . This will be the first time he plays a character affected by his real-life illness.

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