- Halbert Brown
- Ambassador James W. Gerard
- Willard Dashiell
- Sir Edward Goschen
- Louis Dean
- Kaiser Wilhelm II
- Earl Schenck
- Crown Prince of Germany
- George Ridell
- Field Marshal von Hindenburg
- Frank Stone
- Prince Henry of Prussia
- Karl Dane
- Chancellor von Bethmana-Hollweg
- Fred Hearn
- Foreign Minister von Jagow
- Percy Standing
- Undersecretary Zimmerman
- William Bittner
- Grand Adm. von Tirpitz
- Arthur C. Duvel
- Field Marshal von Falkenhayn
- Anne Dearing
- Aimee Delaporte
- A.B. Conkwright
- Socialist
- William Nigh
- Socialist
- Eugene Acker
- Undetermined Role
