Tin Man
The Tin Man was a character from the Earth story The Wizard of Oz. He was a mechanical man made from tin who longed to be Human. His lamentation of not being Human was expressed in the tune If I Only Had a Heart. By the end of the story, he learned that he was always Human. He did not realize this as he worried so much. ()

External link 
 
 Tin Woodman at Oz wiki

Nicknames
Fictional characters