Nick Searcy, Paul James, Robert Sean Leonard and Robert Wisdom are also joining the six-episode National Geographic Channel limited series. James D’Arcy is set to guest-star.
TOPICS: The Hot Zone, National Geographic, James D’Arcy, Julianna Margulies, Liam Cunningham, Nick Searcy, Noah Emmerich, Paul James, Robert Sean Leonard, Robert Wisdom, Topher Grace