- H.B. Warner
- William Berner
- Enid Markey
- Adrienne von Altman
- John Gilbert
- English Spy
- George Fisher
- Lieutenant Franz Hollen
- Margaret Thompson
- Helen von Altman
- Louise Brownell
- Baroness von Altman
- J.P. Lockney
- German Secret Service Agent
- Charles K. French
- German Commander
