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

If I only had a tail...
Goku from early in Dragonball GT, after he's been turned back into a child. I'm not much of a fan of GT but I like Goku's expression in this cel.
 
Added: 2/9/02
 
If I only had a tail...