Guest Stars Eric Szmanda as Gregory "Greg" Sanders Robert David Hall as Dr. Albert "Al" Robbins David Berman as Dr. David Phillips Joseph Patrick Kelly as Officer Metcalf Eric Stonestreet as Ronnie Litre Jeffrey D. Sams as Det. Cyrus Lockwood J. Marvin Campbell as Hazmat Guy Zachary Quinto as Mitchell Sullivan Lyndon Smith as Graham Anthony Starke as Matt Hudson Paul Schackman as Bob Martin Gabriel Olds as Ben Weston Cathy Herd as Stacy Warner Co Starring Adam Nelson as Reed Collins
