Bill Murray as Franklin D. Roosevelt

Laura Linney as Daisy

Samuel West as Bertie

Olivia Colman as Queen Elizabeth

Olivia Williams as Eleanor Roosevelt

Elizabeth Marvel as Missy

Elizabeth Wilson as Mrs. Roosevelt

Martin McDougall as Tommy

Andrew Havill as Cameron

Eleanor Bron as Daisy's Aunt

Nancy Baldwin as Mrs. Astor

Kumiko Konishi as Princess Te Ata

Blake Ritson as Butler

Morgan Deare as Plumber

Kevin Hudson as Reporter (uncredited)