 Robert VaughnNapoleon Solo | Napoleon Solo |
 David McCallumIllya Kuryakin | Illya Kuryakin |
 Luciana PaluzziAngela | Angela |
 Pat CrowleyElaine May Bender Donaldson | Elaine May Bender Donaldson |
 Fritz WeaverAndrew Vulcan | Andrew Vulcan |
 William MarshallSekue Ashumen | Sekue Ashumen |
 Will KuluvaMr. Allison | Mr. Allison |
 Ivan DixonJean Francis Soumarin | Jean Francis Soumarin |
 Victoria ShawGracie Ladovan | Gracie Ladovan |
| EEric BerryAlfred Ghist | Alfred Ghist |
 Joseph V. PerryAssault Force Member | Assault Force Member |
 Joyce TaylorMargaret Oberon (uncredited) | Margaret Oberon (uncredited) |
 Rupert CrosseGen. Molte Nobuk (uncredited) | Gen. Molte Nobuk (uncredited) |
 Robert BrubakerAssault Force Member (uncredited) | Assault Force Member (uncredited) |
 John BryantHenchman (uncredited) | Henchman (uncredited) |
 Sharyn HillyerStewardess (uncredited) | Stewardess (uncredited) |
 Roy JensonAssault Force Member (uncredited) | Assault Force Member (uncredited) |
 Kenner G. KempParty Guest (uncredited) | Party Guest (uncredited) |
 Richard KielThug in Vulcan's Factory (archive footage) (uncredited) | Thug in Vulcan's Factory (archive footage) (uncredited) |
 Cynthia LynnParty Guest (uncredited) | Party Guest (uncredited) |
| MMario Siletti Jr.Del Floria (uncredited) | Del Floria (uncredited) |
