A faithful city guardian the Old Thomas, who has stood on the top of the tower of Tallinn Town Hall for centuries, is suddenly gone. He has neglected his post in order to go and protect a couple in love. The adventures of the Old Thomas and the historians who are chasing him through the romantic Old Town of Tallinn and the newer district of Tallinn. The whole film has the mood of song celebrations and the characters are always accompanied by music, songs and dance.
| Actor | Role |
|---|---|
 Kaljo KiiskOld Thomas | Old Thomas |
 Endel PärnFevered Historian | Fevered Historian |
 Hardi TiidusCalm Historian | Calm Historian |
 Ülle KoniGirl | Girl |
 Rein AedmaBoy | Boy |
 Vladimir SapožninVladimir Sapožnin | Vladimir Sapožnin |
 Maryn E. CooteMaria | Maria |
| EEls HimmaSoloist | Soloist |
| KKatrin MännikoGirl Soloist | Girl Soloist |
 Einari KoppelFalse Thomas | False Thomas |
 Voldemar KuslapSoloist | Soloist |
| UUno LoopSoloist | Soloist |
 Andres OtsHousekeeper | Housekeeper |
 Ivo LinnaBoy Soloist | Boy Soloist |
 Jaak EllingFilm Group Boom Operator (uncredited) | Film Group Boom Operator (uncredited) |
 Helve HallaRussian Guide (uncredited) | Russian Guide (uncredited) |
 Heiki RootsFilm Group Director (uncredited) | Film Group Director (uncredited) |
 Semjon ŠkolnikovTheatre Director (uncredited) | Theatre Director (uncredited) |
 Alice TalvikTranslator in the Theatre (uncredited) | Translator in the Theatre (uncredited) |
 Linda TubinGrandmother (uncredited) | Grandmother (uncredited) |
| HHerman VahtelFilm Group Sound Director (uncredited) | Film Group Sound Director (uncredited) |