Vanilla, or Nilla for short, is a 16 year old red panda, Dexter and Barbara's sister, and a member of the band called the 'The Neapolitan Triplets' (despite not actually being triplets) is the uptight rule follower of the group who prefer to play things safe. She is very prone to stress and panic outbursts when things go array. She doesn't play huge role in the season, but does show briefly in a few episodes.

Nilla would have a high pitched, almost nasally type of voice. Nilla also appears in a flashback as a child with a few lines, I figure I'd be easier to have the same VA for both the child and present teen iterations of the character.