WonderCon became ThunderCon! today with the world premiere of a new trailer for ThunderCats, an all-new animated series for Cartoon Network from Warner Bros. Animation.

Fans in the US can check out the new trailer below:

(Unfortunately the link above isn’t available to view in all countries – for International fans, we recommend you check out the video of the trailer on Cartoon Network‘s Facebook page. Click here to view the trailer!)

Warner Bros. Animation also presented the first-ever fan-convention panel for the new series, featuring producers Michael Jelenic (Batman: The Brave and the Bold) and Ethan Spaulding (Avatar: The Last Airbender), art director Dan Norton and Larry Kenney — who provides the voice of Claudus in the new ThunderCats and was the original Lion-O in the 1980s version. The four talked about the creative vision for the new series and also answered fan questions.

UPDATE: Our friends at Warner Bros sent over these photos of the ThunderCats creative team at WonderCon – click on any of the thumbs below to view a larger version!

ThunderCats art director Dan Norton (left) and producers Michael Jelenic (center) and Ethan Spaulding (right) meet the media ThunderCats’ Larry Kenney talks to the media Art director Dan Norton (left) and producers Michael Jelenic (center) and Ethan Spaulding (right) talk ThunderCats in the press room

The ThunderCats panel, from left to right: art director Dan Norton; Larry Kenney (center), the voice of Claudus and the original Lion-O from the 1980s; and producer Ethan Spaulding (right) The ThunderCats panel, from left to right: art director Dan Norton; Larry Kenney (center), the voice of Claudus and the original Lion-O from the 1980s; and producers Ethan Spaulding and Michael Jelenic The ThunderCats team at WonderCon, from left to right: producer Michael Jelenic;  art director Dan Norton; Larry Kenney, the voice of Claudus in the new show and the original voice of Lion-O in the 1980s series; and producer Ethan Spaulding

Based upon the iconic 1980s action classic, ThunderCats tells the epic tale of Lion-O and his battle against evil in the quest for the fabled Stones of Power. The series is executive produced by Sam Register (Teen Titans, Ben 10, Batman: The Brave and the Bold).

Stay tuned for more news to come from the panel at WonderCon!

and to see what other fans are saying about this new trailer, be sure to check out the discussion on our forum here: WonderCon ThunderCats Trailer!

ThunderCats - Tygra, Cheetara and Lion-O ThunderCats 2011 logo

First look at Evil S-S-Slithe in animated form!