The title role is the role (or position) of the character after whom a literary work (e.g.: play, film, book (when read aloud), computer or video game (when it has voice-overs))is named when that work is performed.
A part, or character, performed by an actor in a drama; hence, a part of function taken or assumed by any one; as, he has now taken the role of philanthropist.
Title role, the part, or character, which gives the title to a play, as the part of Hamlet in the play of that name.
The actor playing the title role is not always the lead; the title role may or may not be the protagonist.
The titlecharacter in fiction is the character whose name is contained in the title, as in Marjorie Morningstar, by Herman Wouk, and The Adventures of Huckleberry Finn by Mark Twain.
Titlecharacters are distinguished from real people, living or dead, since a character is a construct of fiction.