Kid is a girl, but has a very androgynous voice. She's bored pretty much all of the time, and pranking Nine / investigating creepy things entertains her. She looks and sounds really emo, but on the inside she's just a little shit. When she gets possessed she'll sounds very much like Bill Cypher from Gravity Falls, laughs a lot, still trying to entertain herself by messing with Nine. I'll be doing some of this with audio editing (layering voices and adding filters) but the cadence is very much Bill. Don't worry about the distortion on possessed Kid for the audition, I'm mostly looking for the right tone / cadence. 

Normal Kid References: 

Marshall lee (Adventure Time - Kid's a girl but her attitude / cadence is very similar to Marshall - just a bit more androgynous of a voice) 

Haruhi (Ouran Highschool Host Club - dubbed version)

Wendy (Gravity Falls)

Possessed Kid References:

Bill Cypher (Gravity Falls)

You can watch the leica for reference, and if there's any additional lines from it that you want to use in your audition, please do so! The more reference the better!