In its newest issue, Soap Opera Digest shed some light on Mark Collier's new role on NBC's "Days of our Lives." The actor, who debuts on the Wednesday, December 18 episode, is portraying Liam, who Adrienne Kiriakis (Judi Evans) sets up on a date with Jennifer Horton (Melissa Reeves). "I knew his first name was Liam, but not much more than that. He went to high school in Salem," shares the actor who began filming in August. Ironically, with Collier now on board, the "DAYS" cast now includes the first two actors who portrayed "As The World Turns'" Mike Kasnoff (Collier played the character from 2002-2007; Shawn Christian [Daniel Jonas] originated the role in 1994).