Can't Believe It's Saturday

 is the fourth 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 Cartoon Network series, "The Secret Saturdays".

Summary
The Space Teens help the Saturday family to track down a bat monster that causes a global standstill to every human and animal population on earth.

Characters

 * Maria Tchaikovsky
 * Nikki Fox
 * Yuki Mori
 * Kunto Babatunde
 * Jenna Garcia
 * Ozymandias
 * Lagom Saylu
 * VIGA
 * Squatchel
 * Zak Saturday
 * Doc Saturday
 * Drew Saturday
 * Fiskerton
 * Komodo
 * Zon
 * V.V. Argost

Voice Cast

 * Corey Burton - V.V. Argost
 * Cristina Milizia - Jenna Garcia
 * Diedrich Bader - Fiskerton
 * Frank Welker - Squatchel
 * Fred Tatasciore - Komodo, Zon
 * Jonathan Adams - Ozymandias
 * Lacey Chabert - Nikki Fox
 * Laura Bailey - Maria Tchaikovsky
 * Matt Smith - VIGA
 * Nicole Sullivan - Drew Saturday
 * Nolan North - Lagom Saylu
 * Phil Morris - Doc Saturday
 * Sam Lerner - Zak Saturday
 * Stephanie Sheh - Yuki Mori
 * Teala Dunn - Kunto Babatunde

Trivia

 * The original cast members from "The Secret Saturdays" reprise their roles of the show's main cast for this episode.