The Baudelaire Orphans

The Baudelaire Orphans are the main protagonists of the series of children's novels: A Series of Unfortunate Events and its 2004 film adaptation. There are exactly two sisters and a brother. When their parents are killed in a fire that burns down their house, they are sent to live with their wicked uncle, a stage actor/criminal named Count Olaf, who wants to steal their fortune. In Happy Tree Friends, they are porcupines.

Violet Baudelaire
Violet is the oldest and leader of the Baudelaire siblings who always invents something useful.

Klaus Baudelaire
Klaus is the middle of the Baudelaire siblings who loves to read and research.

Sunny Baudelaire
Sunny is the very smart youngest of the Baudelaire siblings and loves to bite things and despite being a baby with her abnormally large teeth.