Academy Award-nominated and Emmy Award-winning actress Mare Winningham (Grey's Anatomy, the off-Broadway musical 10 Million Miles) is set to guest star on Boston Legal. She plays Patrice Kelly, who asks Alan Shore's (James Spader) advice on how to kill the man who murdered her daughter and was acquitted by reason of temporary insanity. When Shore refuses to help, Patrice kills the man and asks Shore to represent her in her murder trial. The episodes will air later this season on ABC. Boston Legal has its fourth season premiere on TUESDAY, SEPTEMBER 25 with a 90-minute episode (9:30-11:00 p.m., ET).

Boston Legal was recently nominated for six Emmy Awards, including Outstanding Drama Series, Outstanding Lead Actor for James Spader, Outstanding Supporting Actor for William Shatner and Outstanding Guest Actor for Christian Clemenson.

The series stars James Spader as Alan Shore, John Larroquette as Carl Sack, Christian Clemenson as Jerry Espenson, Gary Anthony Williams as Clarence/Clarice Bell, Tara Summers as Katie Lloyd, Saffron Burrows as Lorraine Weller, with Candice Bergen as Shirley Schmidt and William Shatner as Denny Crane.

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