Amanda is Candace's future daughter. She is the sister of Xavier and Fred.
She appears to act like her mother, but reversed, she always tells Xavier and Fred to do something cool during their summer vacation rather than just sit under front of the family's digital tree. To her annoyance, they still answer her question "What are you doing?" with "Nothing" even when they are building bumper cars that move in five dimensions. She originates from Phineas and Ferb.