Guest Stars J.K. Simmons as Dr. Clarence Weaver CCH Pounder as Lt. Lee Havercamp Rainn Wilson as Martin Grolsch Anjul Nigam as Dr. Renfro Elizabeth Connors as Claudia Kramer Max Van Ville as Josh Kramer Marita Geraghty as Jessica Avery Co Starring Dean Shelton as Joshua Kramer James Shanklin as Physicist Cody Estes as Ryan Kramer Robert Manning, Jr. as Gerald Wallace Eliza Pryor Nagel as Brandi Kieren van den Blink as Nikki Tanner Richie as David Kramer January Pugh as Linda Wallace
