The Girl and the Monster

 is the twenty-first episode of the second season of Star Teens Unite!.

Summary
Dr. Einstein has created his own monster that is five feet high and eighteen feet long, and has sent it to Earth to attack the Star Teens. However, the monster is too gentle because all it needs is Princess Amelie to come and kiss it.

Debuts

 * Einstein Monster

Characters

 * Ella
 * Inidra
 * Sandra
 * Felicia
 * Lisa
 * Tanya
 * Sheila
 * Bella
 * Veronica
 * Princess Amelie
 * Dr. Ivor Einstein
 * Tauron

Voice Cast

 * Aimee Carrero - Tanya
 * Colleen O'Shaughnessey - Princess Amelie
 * Dee Bradley Baker - Tauron
 * Grey Delisle Griffin - Sandra
 * Jennifer Hale - Veronica
 * Jess Harnell - Dr. Ivor Einstein
 * Jim Cummings - Einstein Monster
 * Kari Wahlgren - Ella
 * Kate Micucci - Inidra
 * Kimberly Brooks - Sheila
 * Susanne Blakeslee - Bella
 * Tara Strong - Felicia
 * Vyvan Pham - Lisa

Trivia

 * Princess Amelie visits earth for the first time.