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 nine and a half feet tall, and has sent it to Earth to attack the Star Teens. However, the only problem with this monster is that it's too kind and gentle.

Debuts

 * Einstein Monster

Characters

 * Ella
 * Inidra
 * Sandra
 * Felicia
 * Lisa
 * Tanya
 * Sheila
 * Bella
 * Princess Amelie
 * Geeber (Einstein's monster)
 * Tauron
 * Dr. Ivor Einstein

Voice Cast

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