Alois Švehlík

as Heinrich Mattoni (Old)

12 episodes

Michal Dalecký

as Morávek

9 episodes

Tatiana Dyková

as Wilhelmína Mattoni (Adult)

9 episodes

David Švehlík

as Heinrich Mattoni (Adult)

9 episodes

Taťjana Medvecká

as Wilhelmína Mattoni (Old)

8 episodes

Vladimír Kratina

as Dr. Löschner

8 episodes

Martin Myšička

as Dr. Gastl

8 episodes