Joanna is one of the six characters that make up the Friendship Guppies. She is Callie's younger sister.
Like a lot of younger siblings, Joanna is always being treated as the baby of the family, much to her irritation. She claims she can take care of herself, though that doesn't stop Callie from keeping an eye on her and worrying about her all the time. Joanna often tries to do everything on her own unless she's with her friends. She is a lot like her sister; bold, stubborn, and a bit hotheaded. She also posses her good qualities like, bravery, honesty, hard working, and affectionate towards her friends. Though she looks cute and sweet, a lot of adults find her hard to deal with due to her stubbornness.
Joanna is a fair-skinned girl guppy with green eyes. Her reddish-orange hair is tied in a low ponytail with a green hairband. Her tail and top is neon green with yellow stripes.
- Her favorite color is green.