Cassidy's age is uncertain although she looks older than Jessie and James. Her hair is blondish/goldish and her eyes are purple.
Her uniform is black, differing from what Jessie wears. This is either because she and Butch are lower in rank than Jessie and James or higher. No one knows. I don't think anyone cares.
She's on the Boss's good side, no matter how many times she and Butch have screwed up. And she likes to rub that fact in Jessie's face.
She and Jessie happen to be 'rivals'. They were friends before but as Jessie says, "She was jealous because I was more beautiful."
Cassidy, like Jessie, seems like she's more in charge. Although she doesn't use any weapons, she's snappy.
She has a Raticate and a Drowzee that she shares with Butch.
