Just like his father, Marlowe the togekiss, Sibelius has his heads in the clouds and he has a wild imagination. He is also very naive and believes almost anything you tell him.  It is not hard to impress this chatot, which might explain why he admires his best friend, scratch the pachirisu. This duo is inseparable and cause a lot of trouble to their caretakers and other older Pokémon. Despite Sibelius’ mischievous side, he is the more well-behaving of the duo thanks to his father’s and uncle’s influence. Like most chatots, he is able to learn and speak the human language, but he learns them from the internet, thus he speaks English in lolcatty. 

Recommend voice: 

Like his friend Scratch, he can be mischievous but, he’s not the most energetic like him, and plus he’s more obedient due to his father’s and uncle’s influence in him. Pace is normal of course. The recommended tone or base of the voice is since he’s child like Scratch in the comic, is to have his voice a bit higher but more smoother. And as for the 3rd line, make sure that the voice sounds a bit gloating.