Birdy

Cowboy Bebop

Dragonball

Flame of Recca

Gundam Wing

Hunter x Hunter

Inuyasha

Mononoke Hime

Oddments

Outlaw Star

Ranma 1/2

Rurouni Kenshin

Trigun

Yuu Yuu Hakusho

Heh heh heh
Great devilish expression on Goku's face, though he's just not the sort of character to utter the classic villainous laugh.
 
Added: 2/10/02 From: Anime Taro
 
Heh heh heh