Láďa Kristen (played by Ladislav Pešek) is a protagonist in Okénko do nebe.
Jiří Kavalír (played by Jiří Dohnal) appears in Okénko do nebe.
Slávinka Salavová (played by Nataša Gollová) appears in Okénko do nebe.
Máša Hálová (played by Božena Šustrová) appears in Okénko do nebe.
Kamila Krupičková (played by Antonie Nedošinská) appears in Okénko do nebe.
Amálie Sýkorová (played by Světla Svozilová) appears in Okénko do nebe.
Gustav Danner (played by Gustav Hilmar) appears in Okénko do nebe.
Sylva Flori (played by Eva Vrchlická) appears in Okénko do nebe.