The short press release, as found on Spoiler TV suggests that Amy will be guest starring on the second episode of season 2, which will be airing October 4, 2012. Confirmation to follow, hopefully!
“PERSON OF INTEREST” – Thursdays, 9:00 PM
Ken Leung (“Lost”) will guest star as the POI in the second season premiere on Thursday, Sept. 27.
Emmy Award winner Margo Martindale (“Justified”) will guest star in the second episode of season two (Thursday, Oct. 4) as a woman with ties to Finch’s hacker nemesis/kidnapper, Root (Amy Acker).