| Observers | |
| Last name | First name |
| Kunchev | Angel |
| Gallagher | Finán |
| Klein | Jörn |
| Jormanainen | Tomi |
| Kopilovic | Boris |
| Broekhuijsen | Janneke |
| Chuang | Hui Wen |
| Kuo | Jiun-Shian |
| Tuan | Yen-Chang |
| De Raad | Annamieke |
| Vasileiou | Charalampos |
| Boland | Mairin |
| Campagna | Antonello |
| Corrales Izquierdo | Silvia |
| Diaz Rodriguez | Sandra |
| Dionisio | Mauro |
| Gambuzza | Maria Elsa |
| Hunt | Andre |
| Johnson | Allan |
| Kakakiou | Androniki |
| Lavruvianec | Audrone |
| Leon | Jorge |
| Martinez-Alvarez | Juan-Ramon |
| Papadakis | Antonios |
| Pavli | Androula |
| Rjabinina | Jelena |
| Rosati | Paolo |
| Santana-Armas | Juan-Francisco |
| Smith | Andrea |
| Tsironi | Ioanna |
| Tzikou | Amalia |
| Ubeda Ortiz | Marcos Adrian |
| Veenstra | Thijs |
| Ziolkwoski | Susan |
| Pedraza | Elena |
| Reinoso | Carlos |
| Jelovčić | Irina |
| Fernánedz Fuenteseca | Alberto |
| Pilkova | Martina |
| Vozelevskaja | Natalja |
| Sell | Jürgen-Iver |
| Van Reusel | Diederik |
| Varmusová | Monika |
| Belanová | Mária |
| Collins | Scott |
| Karli | Maria |
| Beykirch | Christine |
| Gogova | Lucia |
| Lara Castro | Marina |
| Garcia | Lozar |
| Elbaz Eljarrat | Mercedes |
| Pantazis | Spiridon |
| Baltatzi | Myrto |
| Bygvraa | Despena Andrioti |
| Ashley | Tim |
| Zamfir | Dumitru |
| Pinto | Latino |
| Balachia | Pasquale |
| Ikizceli | Mustafa Cankat |
