This show has lot of great guest characters. But, my favorite guest star has to be Carrie Preston with all due respect to Michael J Fox, Mamie Gummer and Martha Plimpton.Carrie was great again this week!BTW, Carrie is the actual wife of Michael Emerson (Ben Linus on Lost, Finch on Person of Interest). She also played the mother of Ben Linus on Lost and the love interest of Finch on PoI.What was odd though is that last week, Michael J Fox told Alicia that he purchased her company's debt and there was no mention or talk about that in this week's episode. I wonder if CBS aired episodes out of order.