Postman

The postman travels around Termina and Hyrule (Minish Cap) giving people their mail.

Majora's Mask
In Majora's Mask the Postman travels around Clock Town putting mail in the postboxes. Link can do a sidequest which involves the Kafei & Anju Sidequest. In this sidequest he can obtain the Postman's House. The Postman's symbol is the rabbit it's on the front of the Post Office. And the postman's main color is red.

The Minish Cap
In the Minish Cap he does basically the same thing he does in Majora's Mask except for in Hyrule.

Parralel Form
In Ocarina of Time he is a man who is trying to chase down rabbits. Link can do a sidequest where he gives him the Bunny Hood.

Descendents?
In the Wind Waker their is a Rito named Kogoli who has pretty much the same face as the Postman. On Kogoli's figurene it says that he is the third generation of a family of postmen but their's a rumor that he is descended from a famous postman ages past.

Bunny Sybmol (Wind Waker)
On a red notebook in the Nintendo Gallery is a bunny symbol.