|First appearance||Breaking Dawn (mentioned)|
|Last appearance||Breaking Dawn (mentioned)|
|Created||Unknown date by Sasha|
|Eye colour|| Red (vampire)|
|Family members|| Sasha - Mother (deceased)|
Irina - Sister (deceased)
Vasilii was born during the plague of the Immortal Children and is an immortal child. Sasha created Vasilii when he was still a very young child, and at this age, children do not have the self control to be able to resist human blood. Because of this, the risk of exposure to humans and the creation of an Immortal Child became a danger to the vampire race, and so it was seen as a crime to turn a child at this age. This is why the Volturi (who take it upon themselves to enforce the vampiric "laws") had to execute Vasilii and the woman who created him.
Vasilii is still viewed as a part of the Denali Coven, even though when he was still alive, his three sisters were unaware of his existence. This was deliberate by Sasha. She did not want her daughters to get into trouble for what she had done, as she knew it would catch up with her one day. This is why Sasha was burnt alive with Vasilii in her arms but the three girls (Tanya, Kate and Irina) were spared by the Volturi Coven.
It is unknown whether Vasilii will be portrayed in the upcoming film Breaking Dawn.