Piper Pinwheeler is the sister of Fender. Two pigtail-like devices on her head can extend on command to lengths greater than her own height, making them effective semi-projectile weapon, she also can kick pretty quick in the battle scene at the factory, Piper is friendly, outgoing, and generally a happy character, but oftentimes having sibling rivalry with Fender, though they really are good "siblings". She also has a crush on Rodney and wants to help him when he is in danger. Her voice actor is Amanda Bynes.