Teachers of Kastelli
| Finnish and Literature, Drama | |
| Mr Karl Grünn | |
| Ms Maria Kouri | |
| Ms Heini Orajärvi | |
| Ms Eija Paso | |
Languages |
|
| Mr Heikki Ahlholm | Swedish, English |
| Ms Aira Jokiranta | German, English |
| Mr Petri Jokiranta | English, Swedish |
| Ms Kristiina Meskus | Swedish |
| Ms Kerttu Muotka | English, Swedish |
| Ms Marjo Puttonen | French, German |
| Ms Irmeli Ristiluoma | French, German |
General studies |
|
| Mr Esa Boren | Biology, Georaphy |
| Mr Sakari Häkkinen | History, Civics, Law and Government |
| Ms Mervi Kokkonen | Religious Studies, Philosophy |
| Ms Anne Muranen | Philosophy, Psychology, Ethics |
| Mr Pekka Meriläinen | Chemistry, Mathematics, Physics |
| Mr Raimo Niemelä | Philosophy, Psychology |
| Ms Maria Nieminen | Religious Studies, Philosophy |
| Mr Jarmo Sirviö | Physics |
Mathematics |
|
| Mr Rauno Junttila | |
| Mr Tommi Koivisto | |
| Mr Pekka Meriläinen | |
| Mr Jani Syrjälä | |
| Ms Hilkka Säynäjäkangas- Raitala | |
| Ms Satu Tossavainen | |
Computer studies |
|
| Mr Jani Syrjälä | |
Art and music |
|
| Ms Terhi Lähde | Art |
| Ms Aila Knihtilä | Music |
Physical Education |
|
| Ms Marja Seppänen | |
| Mr Risto Keskitalo | Head coach of the sports academy |
Student/Career counselling |
|
| Ms Anja Kunnari | |