Characters played by Matthew Modine
Dr. Michael Ranger
Characters played by Maxim Roy
Dr. Jane Whitlow
Characters played by Ted Whittall
Secretary Brian Lee
Characters played by Trevor Hayes
Jack Hillcroft
Characters played by Kate Drummond
Beverly Hillcroft
Characters played by Kalinka Petrie
Karen Ranger
Characters played by Spiro Malandrakis
Officer Tim Davis
Characters played by Alain Goulem
President Duncan
Characters played by Susan Hogan
Vice-President Alice Crane
Characters played by Francis X. McCarthy
William Danville
Characters played by Shan Chetty
Bunker Tech
Characters played by Dan Bingham
Peter Simpson
Characters played by Kimberly-Sue Murray
HFD Tech Rebecca
Characters played by Trie Donovan
Presidential Aide
Characters played by Nancy Helms
Edna