As much as I admire Thayer David (he's probably my favorite actor on the show) -- and despite the fact I can't fault his performance as Matthew Morgan -- I really wish George Mitchell had continued with the role to its conclusion. He offered a unique persona, a more believable backwater-Maine character than just about anyone else on the show. Mitchell could belt out some of his terse lines with an intensity that I actually find unnerving. Had I been in Vicky's place, I imagine Mitchell would have struck me as more menacing than David; colder, more unreasonable, less inclined to show mercy. With Thayer David, you know you're watching one of his virtuoso performances, and there's a certain "security" in the knowledge that he's acting. With Mitchell, you see Matthew Morgan heart and soul, and thus there's an air of unpredictablity about him.