Luděk Munzar

as Grandpa (Ondra's Father)

as Mr. Walter

as Konrád (15 episodes)

as Narrator (voice) (uncredited)

as Jan Kadlec (1 episode)

as Průvodce seriálem (13 episodes)

as Isaak Joachim Friedrich Zorn

as Narrator (voice)

as Průvodce pořadem (15 episodes)

as Dr. Malík (voice) (uncredited)

as kardinál O'Hara

as Česta

as Anicetus (1 episode)

as Kriminální rada Heumann