- Robert Stack
- Captain Charles Wogan
- Ursula Thiess
- Ann Brett
- Richard Stapley
- Prince James Stuart
- Charles Irwin
- Timothy O'Toole
- Alan Hale Jr.
- Patrick Gaydon
- Leslie Bradley
- Duke of Somerfield
- Louis Merrill
- Count DuLusac
- Paul Cavanagh
- Cavenly, advisor to Prince James
- David Bruce
- Austrian Sergeant at Tavern
- Irmgard Dawson
- Gretzel
- Vernon Downing
- British Turnkey
- Eric Feldary
- Austrian Lieutenant at Inn
- Michael Fox
- Opening Off-Screen Narrator
- Sol Gorss
- Austrian Soldier
- Rica Owen
- Princess Maria Clementina Zobieska
- Otto Waldis
- King George I
- Shirley Whitney
- Anny
