Sisters/A Perfectly Reasonable Explanation
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A Perfectly Reasonable Explanation is the tenth episode of the sixth season of Sisters, and the one hundred ninth episode overall.
Guest Starring: Susan Beaubian (Nancy Jeffries), Charles Hallahan (William Griffin, Sr.), Gili Lang (Little Trevor Jacob Loyst (Little Evan), Whitney Rydbeck (Wilkings Tamlyn Tomita (Kiri Adams), Anne Tremko (Melissa Sorenson)