- (Not to be confused with Cassidy, Bell's former friend)
Cassidy has a very affectionate, cutesy way of speaking- she calls the campers "little darlings" and tells them to have a "lovely morning."
After she is taken over by the birds on July 17, she points out that humans have no wings to help them survive in the forest, and so she teaches them to forage for grubs by putting her face in the dirt. Bridget and Bell ignore Cassidy, and sneak away.
She wins the grub-finding round of the Summer Camp Olympics because Bridget can't stand having her face in the dirt.