The New Adventures of The Wild Thornberrys: Invasion of the Thornberrys

The Thornberrys Are Coming is the one-hour special in the sixth season of The Wild Thornberrys.

Summary
Eliza believes that the outback is being invaded by aliens.

Main Cast

 * Lacey Chabert as Eliza Thornberry
 * Tom Kane as Darwin
 * Flea as Donnie
 * Danielle Harris as Debbie Thornberry
 * Tim Curry as Nigel Thornberry
 * Jodi Carlisle as Marianne Thornberry

Guest Stars

 * James Earl Jones as The Alien Leader: The main antagonist of the special. He is an extraterrestrial being who questions the meaning of his life due to the circumstances of his birth in a human laboratory and strikes back against humanity to prove his own worth.
 * Adam Garcia as Jack: A red kangaroo who helps Eliza deal with the aliens.
 * Matt Smith as Ernie: An emu who helps Eliza deal with the aliens.
 * Jeff Bennett as Larry: An echidna who helps Eliza deal with the aliens.

Trivia

 * The Alien Leader's personality, character, and appearance is inspired by Mewtwo from Pokemon: The First Movie.