The relationships of Freddie Facilier throughout the Descendants franchise.
Dr. Facilier is father of Freddie. The two haven't shown any interaction with each other yet. Together, they owned a shop, although Dr. Facilier seems to not show up very often there, probably because he's busy at Dragon Hall.
Even though she's a thief who pulls scams and has caused Mal trouble several times in the past, she still considers Mal a friend. Mal of course, returns the sentiment, despite being creeped out, and it helps that before going to Auradon, Mal was a small-time opportunistic thief, not unlike Freddie herself. In "Pair of Sneakers", they go back to the Isle into her fathers shop and gives Mal a good luck charm from her father's shop as a compensation for Mal not finding her family jewel. She doesn't realize, however, that the necklace contains the jewel, which is cursed to bring out Mal's evil side.
She knew Freddie was trouble but didn't have much interaction with her and the two did interact well, with Evie conversing with her about how to smize (smiling with eyes) and about how to live in Auradon in episode 9 and trying to give her a makeover in episode 14 though Freddie declined.
Freddie helped her partner-in-crime, CJ Hook go to Auradon and do garden-variety villain acts, but when it became clear to Freddie that CJ treated her as her minion instead of an equal, Freddie decided to break off their partnership.