Derived from the wiki:

Bassie is shy and timid, appearing to fidget during her idle animation. She has a fear of being replaced. She also feels resentment and jealousy towards Cocoa who is the fan favourite and who is the 'better picking' for the Main Character class. In her dialogues, she has a tendency to laugh uncontrollably whenever she feels like she is not keeping up with others' expectations of her, which often makes other toons feel uncomfortable or weirded out. Bassie constantly compares herself to the other "main" friends, trying to remember their names, because she possibly has a fear of being replaced, knowing that if anyone were to replace her, it'd be Cocoa.

This is a HOLIDAY TOON! Holiday toon roles, like Handlers, will be needed less commonly (As they have less comics) and may be double casted if demand is low for hiring. Don't be afraid to apply for multiple roles!

I expect either a shy, high pitched whispery voice akin to White Lily Cookie (CRK) or a shakily confident voice akin to Pomni (TADC). Either one could work.