character - Czentovics Sándor

character - Hercule Poirot

character - Narrátor

character - Szabó József

character - Jácint, a bátyja

character - csillagász

character - önmaga

character - Géza Kovács

character - Doctor

character - István

character - Szoros

character - Detective

character - Dargay András

character - Szerkesztő

character - Al F. Eveson

character - Otto Walser

character - Vida Ferenc

character - Csapó

character - Cholnoky Sándor (fiatal)

character - Genagyij Pesztyarjov, tornatanár

character - Dr. Pinczés János

character - Váradi Róbert