The Princess Problem

Official synopsis
D.W. loves the Princess Platoon series until she realizes that it doesn't represent everyone. With the help of Arthur's friend, Lydia, she discovers the true qualities of a princess.

Major

 * D.W. Read
 * Lydia Fox
 * Emily

Minor

 * Amanda Hulser
 * Timmy and Tommy Tibble
 * Arthur Read
 * The Princess Platoon:
 * Princess Perky
 * Princess Proper (mentioned)
 * Princess Peppy (mentioned)
 * Princess Penguin (mentioned)
 * Princess Prancia (mentioned)
 * Princess Ana (mentioned)
 * Princess Prophecia (mentioned)
 * Bud Compson

Cameo

 * James MacDonald
 * Cheikh
 * Maryann
 * Kyle
 * Liam
 * Lucy
 * Edwin
 * Sarah
 * Ms. Morgan
 * Lisa

Trivia

 * This is Lydia's third major role. Her other major roles were in The Wheel Deal and Little Miss Meanie.