Greena is Blue's spouse.
In Season 3, the dragon caves are menaced by nightvines while Blue and Greena's egg is still inside. Mia tries to recover the egg but gets enclosed herself. Yuko and Mo get help from the Sun Unicorn.
In Season 4, the dragons help the elves to get on top of the Needlepeak Mountains.
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| Characters | ||
|---|---|---|
| Real world | Kids | Mia • Vincent • Paula • Violetta • Mario • Sara • Fabio • Mattis |
| Adults | Annie • Renzo • Contessa • Vittorio • Franca • Silvio • Luciana • Mr. Monti • Mr. Meloni • Carina Amato • Hektor • Pieter | |
| Animals | Tarzan • Johnny • Sapphire • Dario • Peppino • Wolfi • Linda • Rabbit | |
| Centopia | Elves | King Raynor • Queen Mayla • Mo • Yuko • Simo • Tessandra • Xolana • Shiva • Lasita • Kuki • Lola • Riok |
| Unicorns | Onchao • Lyria • Ono • Kyara • Balanda • Esko • Fano • Flair • Garnivera • Landa • Lavera • Li • Luna • Malina • Miranda • Pina • Rahn • Rando • Sinette • Sito • Volo • Yolika • Zato • Elemental unicorns • Mimola • Ponycorns • Zotals | |
| Creatures | Phuddle • Polytheus • Baby Blue • Buttercup • King of the Pans • Gurga • Biggawiggi • Pheebie | |
| Villains | Panthea • Gargona • Lord Drakon • Rixel • Dax | |