Never-seen title character (5)
I believe the answer is:
godot
'never-seen title character' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for godot that I've seen before include "Two tramps awaited him (Beckett)" , "man expected on stage" , "someone waited for in theatre" , "One awaited by Vladimir and Estragon" , "he isn't going to come!" .)