Cirno

"Alright, look. I know Cirno isn't exactly mine, but she's not really my representative either of my total self. But I started with this ice fairy - and will finish with her. Not that it's a joke - it kind of is, but I am fine with it."

- himself

"Technically, I don't exist. I'm technically not supposed to be here at all, but then all the snow came down, aand here I am."

- Cirno, Ski Daze (Talking to Jenny and Dr. Zomboss

Cirno is Bolt's mascot of choice, albeit she wasn't normally chosen to be the mascot in question - but is supposed to embody Bolt anyway. She is controlled by.

Abilities
Cirno's obvious abilities come from her being an ice fairy - she can freeze people, alter said ice, and fly all over the place. Those are her main abilities.

Personality
Cirno is a bit of a nutcase. Either insane, happy to go, or just... none of the above and out of her mind! Anything works for her, really.

Trivia

 * Even though Cirno is Bolt's oldest character, she has only appeared once in Season 2 thus far. (Ski Daze, joined by Mirage)