Multicolored Hair

Anime & Manga

 * The Shinigami Ronald Knox in Black Butler has blonde hair at the top and dark underneath, similar to H-neun.

Wester Animation

 * Odd of Code Lyoko has a purple spot in front of his blonde hair, either in his true form or with his Digital Avatar.
 * Several character of Ever After High and most in Monster High have Multicolored Hair.
 * The titular character of Growing Up Creepie has literal rainbow hair.