Nikolai Binev

as Kupenkov

as Abraham Belzer

as Dr. Alexi Gierach

as Vincent

as Phillipe

as Sergei Kozlov

as The Doctor

as Pop-Pop

as Aktior

as академик Михаил Урумов (6 episodes)

as Хенри Томас, агент на ЦРУ (6 episodes)

as The Professor

as Mr. Teodosiy

as Lazarov

as Dinko Syarov

as Sledovatelyat

as Upravitelyat

as Direktorat na gimnaziyata

as Tihiya