Hania Barton's role in Paranoid.

The IMDB cast has Hania Barton (Mischa's little sister) listed as playing Kirstie. All I could see that could have been her would have been one of the deaf girls with the school bus - one says hi to Mischa when she gets on, and one waiting to get on the bus where Mischa runs off the bus to mail the letter to the police. She is not credited on the DVD.

Any other ideas about which one she was?