Mare Winningham by Jeff Vespa/WireImage.com Mare Winningham by Jeff Vespa/WireImage.com

Fresh off a Grey's Anatomy run, Emmy winner Mare Winningham finds herself in need of some Boston Legal advice this season on ABC's court drama. Winningham will play a woman who asks Alan Shore for advice on how to kill the man who murdered her daughter but was acquitted by reason of temporary insanity. When Alan refuses to help, ( spoiler alert) the avenging mother kills said man and then asks Shore to represent her in her murder trial.

Boston Legal launches Season 4 with a 90-minute episode on Sept. 25, at 9:30 pm/ET.