The Secret Diary of Simon Petliura takes an unprecedented look at the short-lived Ukrainian People's Republic, which declared an independent Ukraine in 1918, and the later assassination of the UNR's chairman, Symon Petliura in Paris in 1926, orchestrated by the Kremlin at the start of the Soviet occupation of Ukraine.
| Actor | Role |
|---|---|
 Serhiy FrolovSymon Petlyura | Symon Petlyura |
 Irma VitovskaOlha Petlyura | Olha Petlyura |
 Viktoria YanchukLesya Petlyura | Lesya Petlyura |
 Oleg TrepovskiySholom Schwartzbard | Sholom Schwartzbard |
 Yevhen NyshchukVolodymyr Vynnychenko | Volodymyr Vynnychenko |
 Bohdan BeniukMykhailo Hrushevskyi | Mykhailo Hrushevskyi |
 Roman MatsiutaPetro Bolbochan | Petro Bolbochan |
 Taras ZhyrkoJean Pélissier | Jean Pélissier |
 Serhiy LadyesovPosol Rakovskyy | Posol Rakovskyy |
 Volodymyr PalyanytsyaGeneral Shapoval | General Shapoval |
 Serhii DenhaAdvokat Kempinki | Advokat Kempinki |