On Tuesday's episode of WATCH WHAT HAPPENS LIVE host Andy Cohen asked newly returned DAYS OF OUR LIVES star Lisa Rinna who was the worst actor in the show's history. After some prompting, Rinna agreed it was Joseph Mascolo, the longtime fan favorite who plays Stefano DiMera. Soap Opera Digest was able to get a response from always clever Mascolo who says, "Lisa saying that Taylor should have her lips reduced and calling me the worst actor on DAYS is sort of like the pot calling the kettles black! Watch out, Lisa. Stefano always gets revenge!"