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

Woof woof!
Inuyasha may look relatively mature but that's just an illusion. He and Shippou are basically the same mental age, so Inuyasha gets endless entertainment from teasing the little fox demon.
 
Added: 6/7/09 From: Private Sale
 
Woof woof!