- Kingsley Benedict
- Yorke Norroy
- Jay Belasco
- Carson Huntley
- Vola Vale
- Minna Ober (Episode #1)
- Malcolm Blevins
- Mr. Ober (Episode #1)
- Clyde Benson
- Saxonian Chief (Episode #1)
- Claire Du Brey
- Princess Seraphina (Episode #2)
- Jean Hersholt
- Prince Feodor (Episode #2)
- Lee Shumway
- Count Stefan (Episodes #2, 3)
- Francis Marion
- Prince Paul (Episode #2)
- Elsie Jane Wilson
- (Episode #3)
- Francis McDonald
- (Episode #3)
- Roberta Wilson
- (Episodes #4, 5)
- Frank Whitson
- (Episode #4)
- Harry Mann
- The International Spy (Episodes #4, 5, 7)
- Charles G. Briden
- (Episode #4)
- Harry Archer
- (Episode #4)
- Arthur Hoyt
- (Episode #5)
- Bertram Grassby
- (Episode #5)
- Warda Lamont
- (Episode #6)
- Fred Harrington
- (Episode #6)
- Willard Wayne
- (Episode #6)
- Violet Schram
- Beth Bohun (Episode #7)
- Millard K. Wilson
- Guy Sterner (Episode #7)
- Seymour Hastings
- Senator Bohun (Episode #7)
- Muriel Parker
- Gloria Steinmetz (Episode #7)
- Mignon Anderson
- Irma Mailoff(Episode #8)
- Frank Lanning
- Boris Von Haden (Episode #8)
- Albert MacQuarrie
- John Gaunt (Episode #8)
- Erich von Ritzau
- Von Linden (Episode #8)
- Betty Schade
- Countess Irma (Episode #9)
- Harry Schumm
- H.I.J. (Episode #9)
- Frank Tokunaga
- (Episode #9)