Pentti Korhonen

as Juha Mylly (6 episodes)

as poliisiupseeri

as Dr. Professor

as Doctor

as Asko Lehto (3 episodes)

as Johan 'Jussi' Isotalo (3 episodes)

as Blomqvist (3 episodes)

as Eerik

as George

as Kvartetin jäsen (4 episodes)

as Kirjuri