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 genetically engineered extraterrestrial being who questions the meaning of his life due to the circumstances of his birth and strikes back against humanity to prove his own worth.
 * Jeff Bennett as Jack Smith: A debonair, friendly, and charismatic tourist guide and an old friend of Marianne Thornberry.
 * Jim Cummings as Ted: A koala who helps Eliza deal with the aliens.
 * Adam Garcia as Roger: A red kangaroo who helps Eliza deal with the aliens.
 * Denis Leary as Dodger: A dingo who helps Eliza deal with the aliens.
 * John DiMaggio, Kevin Michael Richardson, and Keith Ferguson as Harold, Frank, and Pete: A trio of razorbacks 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.