The "Flynn-Fletcher family" is a family living in Tatooine who first appeared in "Phineas and Ferb: Star Wars".
History[]
Sometime prior to the special, Phineas Flynn and Candace Flynn were born to Linda Flynn and an unknown father. They also got Perry as a pet.
At an unknown point, Candace left Tatooine in order to join the Galactic Empire, a time during which Linda married Lawrence Fletcher. Prior to the marriage, Lawrence had a son of his own Ferb.
A long time passed and Phineas wouldn't met his sister again until the events of "Star Wars". He showed her that not all Jedi nor rebels were evil subhumans and she defected to the Alliance to Restore the Republic.