In this exclusive behind-the-scenes video, Barbara Pyle discusses casting the voice talent for the series. She talks about Whoopi Goldberg and other cast members. (Meredith Darlington/MNN and Nick Scott/MNN)

ENTER THE CONTEST:

We're giving away one Captain Planet T-shirt signed by the series creator, Ted Turner! Answer the question below after watching the video for your chance to win this great collector's item. The contest opens August 5 at 12:00 AM and ends on August 18 at 11:59 PM. Be sure to visit us again in two weeks for our next Captain Planet T-Shirt giveaway.

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"Captain Planet" is an animated series created by Ted Turner in the 1990s. MNN.com is the primary source for "Captain Planet" episodes on the Web. 

Captain Planet is a superhero whose powers are implemented by a team of five Planeteers (as well as himself), each of whom helps combat environmental catastrophes like pollution, animal poaching, water scarcity and more. Each episode of "Captain Planet" involves the captain and his planeteers tackling different dilemmas and nefarious eco-villains.

Numerous celebrities contributed voice work to the show, including Meg Ryan, Jeff Goldblum, Whoopi Goldberg and many others. You can watch all the Captain Planet episodes on MNN  and you can learn more about the series by going behind the scenes with the creators and major players.

MNN homepage photo includes Whoopi Goldberg (Will Ragozzino/Getty Images) and Tom Cruise (Carlos Alvarez/Getty Images)