Guest Stars Dylan Baker as Ed Copak Vanessa Matsui as Jody Hall Carlos Gonzalez-Vio as Dr. Simon Kurz Ian Colletti as Chris Moore Morgan Kelly as Eric Sykes Denyce Lawton as Sheila Willis Harry Hamlin as Tom Brokaw Michelle Giroux as Jean Malecki Cody Ray Thompson as Clemons Co Starring Stephanie Moore as Diane Ivins Stephen Alexander as Andrew Ivins Douglas Nyback as Agent Polk Jim Annan as Agent Reilly Hailey Fauchere as Amanda Ivins Trudy Weiss as Ryker's Mom Sochi Fried as Erin O'Connor Hannah Cheesman as Stephanie Dailey Sarah Deakins as Gloria Irish Vanessa Smythe as Casey Stevens Elizabeth Saunders as Maureen Stevens Barrington Bignall as Military Officer Amanda Martínez as Jen Mills Chantria Tram as Trauma Tech Damon Redfern as Bob Stevens Billy Parrott as Government Official Yury Ruzhyev as Male Doctor William Colgate as Mike Irish Benedict Marsh as FBI Agent (1992) Mikhail Bronnikov as Soviet Colonel Jordan Imray as Nicholas Stevens Dennis Mirkovic as Russian Scientist Oksana Andrulis as Dr. Tergenev Alejandro Ampudia as Ernesto Blanco Leigh Bush as Heidi Stevens Byron Abalos as JFK Med Center Doctor Igor Shamuilov as Dr. Yuri Sokolov Peter Millard as Jack Lawson