Young Maureen Flavin Sweeney
Eva Sweeney
General Dwight D. Eisenhower
Colin Wright
Self - Meteorologist
Gerald Fleming
Self - Journalist
David McCullagh
Self - British Met Office Archivist
Catherine Ross
Self - British Military Police Colonel
Jeremy Green
Self - Climate Researcher
Rodney Teck
John C. Sweeney
Self - Lighthouse Keeper
Vincent Sweeney
Self - Royal MP Museum Curator
Richard Callaghan
Self - D-Day Veteran
Joe Cattini
Self - Politician (archive footage)
Adolf Hitler
Captain James Stagg
Mike Johnson
Self - British Military (archive footage)
Bernard Montgomery
Self - US Military (archive footage)
Dwight D. Eisenhower
Éamon de Valera
Self - German Military (archive footage)
Erwin Rommel
Franklin D. Roosevelt
Self - Meteorologist (archive footage)
James Stagg
Joseph Goebbels
Joseph Stalin
Winston Churchill
Met Éireann Telephone Operator
John Downes
Self - Historian
Antony Beevor
Robert Gerwarth
Self - Eisenhower's Granddaughter
Susan Eisenhower
Joseph Skelly
Self - Retired US Army Lt. General
Richard G. Trefry
Self - Weather Observer (1944)
Maureen Flavin Sweeney
Sound Re-Recording Mixer
Ken Galvin
Art Direction
David Johnstone
Wardrobe Supervisor
Clodagh Deegan
Sound Recordist
Brendan Deasy
Executive Producer
Colm O'Callaghan
Director
Gerry Gregg
Director of Photography
Seamus Deasy
Production Manager
Jen Dunbar
Co-Producer
Paul Myler
Producer
Nuala Cunningham
Editor
Juangus Dinsmore
Ciarán O'Connor
Costume Designer
Khaki Devil
Writer
Property Master
Post Production Supervisor
Aishling Vesey