Sadie

Sadie is a girl that Kathryn has been friends with since childhood but lost touch with for a few years.

She is voiced by Jeanette Nolan.

Etymology

 * Her name was mentioned by Amos in Stuck in a Bubble.
 * Specifically. Mira says, "Sorry Kathryn's old friend for bumping into you," and Amos says "Sorry Sadie." right after.
 * The end credits of the episode also say "Sadie" then "Jeanette Nolan" when crediting Jeanette Nolan as voicing her.

Trivia

 * Sadie's voice actor, Jeanette Nolan, is also the voice of Ellie Mae in The Rescuers and Widow Tweed in The Fox and the Hound. While she sadly passed away, Sadie is still in the series, and she also retains her voice actor, mainly due to archival recordings.
 * She also shares her voice actor with Kathryn and Cayley.