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