The Battle of Planet Zebes

 is the fifth one-hour crossover special in a series of Star Teens: Power Hour specials that features characters from Star Teens in Space and those from the Metroid franchise.

Summary
While landing on the Planet Zebes, the Space Teens join forces with space heroine Samus Aran to stop Ridley, Kraid, and the other space monsters that terrorize her planet.

Characters

 * Marla Reynolds
 * Nikki Fox
 * Valerie Lincoln
 * Ursula Bennett
 * Jenna Campo
 * Ozymandias
 * Lagom Saylu
 * VIGA
 * Squatchel
 * Samus Aran
 * Ridley
 * Kraid
 * Flaahgra
 * Phantoon
 * Quadraxis
 * Mogenar
 * Meta Ridley
 * Metroids
 * Mother Brain

Voice Cast

 * Dee Bradley Baker - monster voices
 * Frank Welker - Squatchel, monster voices
 * Grey Griffin - Nikki Fox
 * Jennifer Hale - Samus Aran
 * Jonathan Adams - Ozymandias
 * Kari Wahlgren - Ursula Bennett
 * Lacey Chabert - Valerie Lincoln
 * Laura Bailey - Jenna Campo
 * Matt Smith - VIGA
 * Nolan North - Lagom Saylu
 * Tara Strong - Marla Reynolds

Trivia

 * Jennifer Hale reprises Samus Aran for this episode. Jennifer had voiced her in Metroid Prime and its sequels Metroid Prime 2: Echoes and Metroid Prime 3: Corruption, albeit only grunts of pain heard when Samus is harmed, and heavy breathing when low on energy. In this episode, however, we eventually get to hear her talk, even when she tells the Star Teens to follow her lead.
 * Jennifer has also voiced Jessie Bannon on season 2 of The Real Adventures of Jonny Quest and Sam on Totally Spies, among other female characters of other TV shows and movies. Speaking of which, fans of The Real Adventures of Jonny Quest and Totally Spies will get to hear Samus who does sound like both Jess and Sam.