Guest Stars Tamara Tunie as Dr. Melinda Warner, M.E. Caren Browning as CSU Captain Judith Siper Welly Yang as CSU Tech Georgie Susie Dylan as Receptionist Tyler Reign as Paramedic #1 Jordan Gelber as CSU Tech Layton Erik Palladino as Detective Dave Deuthorn Jason Ritter as Billy Baker George McDaniel as Harold Darling Frank Langella as Al Baker Ian Somerhalder as Charlie Baker Ciara Hughes as Marie Douglas Richard Bekins as Earl Briggs Don Sparks as Renny Nix Jeff Talbott as General Manager Ben Hauck as Paul Dumont Freddy Bastone as Ralph Sloan Susan Elaine Knight as Neurosurgeon Andrew McGinn as Detective Stubel Jen Ordham as Tara Burnett Karen Trott as Brenda Nix Edward Sears as Josh Uncredited Steve Zirnkilton voices Opening Narration