John Lithgow &#40;Trinity Killer, season 4&#41; and Jennifer Carpenter &#40;Debra, seasons 1-8&#41; appear at Showtime&#39;s premiere of &#39;Dexter&#39; season 8 in Los Angeles on June, 15, 2013. <span class=meta>(Eric Charbonneau &#47; Invision for Showtime)</span>