Casey Jon Deidrick, who joined DAYS as Chad DiMera in 2009, confirmed on Twitter that he is leaving the show. "Taped my final episode today on #DOOL. One more day of filming tomorrow. What an amazing experience, thank you all!" he tweeted @CaseyDeidrick. Speculation about his exit arose when the show put out a casting call that sounded suspiciously like his alter ego (http://www.soapoperadigest.com/content/days-casting-or-recasting-role).