Dan Aykroyd as Crawford Gordon Jr.

Sara Botsford as Kate O'Hara

Aidan Devine as Jim Chamberlin

Nigel Bennett as James (Jim) Floyd

Jonathan Whittaker as Fred Smye

Ian D. Clark as Edward Critchley

David Lawrence Brown as Joe Paloffski

Catherine Fitch as Ruby Paloffski

Robin Gammell as C.D. Howe

Robert Haley as John George Diefenbaker

Michael Moriarty as President Dwight D. Eisenhower

Michael Ironside as CIA Director

Christopher Plummer as George Hees

Mauralea Austin as June Callwood

Colette Stevenson as Claire Connors

Art Hindle as Col. Fairchild

Lynne Cormack as Mary Gordon

Vernon Chapman as George Peakes

Lubomir Mykytiuk as Jan Zurakowski

Frank Adamson as Air Marshal Wilf Curtis

John Nelles as John Pallet

Niklas Konowal as George O'Hara

Chris Sigurdson as Engineer #1

John Bekavac as Engineer #2

Walter High as Gordon's Limo Driver

Wilfrid Bray as Technician #2

Lora Schroeder as Gloria Collinson

Ron White as Jack Woodman