The protagonist is not only the main character of the book with whose eyes readers can watch and follow the plot. In a context of a story, the protagonist is a human. With their own personality, with advantages and disadvantages, with joys and sorrows.
The perfect protagonist is not only the "eyes" of readers and their guide through the new world. The protagonist is a complete personality, who the reader can sympathize with, who the reader is worried about. Who is to be remembered not only as the guide, but as a living human.
So, let's see what features could help every author to create the remarkable character.
1. Character Flows
Character's merits (telling about how cool, undefeatable and perfect the protagonist is) are things many authors like to describe. But merits are on one side. The protagonist which is exclusively right, who can't lie, who can't feel envy or hate, will never get alive and be liked by the readers. Demerits are what makes people closer to each other mostly. And your protagonist needs to have them: there can be two or three of them, but the most widespread ones.
And yes, here is a question to think on: why the women-readers get in love with bad guys with dark past most of all? What is so attractive in ambiguous characters who behave like rogues sometimes? Why the bad guy with a couple of bright lacks is often remembered better than the bright and the exclusively positive good guy?
Defect is the feature which the protagonist is ashamed of, but which separates them from the crowd. For instance, bad vison and glasses, as well as the skull, were Harry Potter's defects. The protagonist can be too small, too tall, too fat, can have lameness, allergy on cats, etc. This all fits.
Another defect is any widespread fear (claustrophobia, for instance), cowardly features (panic when talking to boss), rare illness (dyslexia – when a person can't learn how to read). And so on.
There are not only live troubles (living, financial, health ones), though they are to be as well, because similar problems close people up. There is to be a problem caused by flaws (or the defect as well).
And the question again: what problems can be caused by dyslexia?
4. Deed and Actions
Deeds are what makes your protagonist really alive. Difficult ones, connected to tough choices. Actions going against all the defects, overcoming lacks and problems, reforming the hero's character.
And there is to be one Deed – a serious one, that will help the protagonist to become smarter, better, elder, will change the life and determine fate. Remarkable deed which readers will remember.
For instance, this was the deed of Frodo Baggins, who decided to bring the ring to the Mount Doom.
5. Protagonist's Character
It is obvious that the character is to be. About its being "two-sided" (of merits and demerits) we've mentioned in the first point of the text. Now more: the character needs to be multi-dimensional and changing. Which means that, when the protagonist comes through the trials and problems, it is needed to develop and change. If the hero has two-three positive features and some negative ones throughout the whole story, then this is not the main hero, but a common character, boring and static one.
Additionally, the protagonist's character needs to appear in all actions: deeds, behavior, speech and even thoughts. It's a pity, but authors often forget about this point, and their characters (nervous girls, brutal powerlifters, cheerful children, etc.) all use the same words with the same intonations.
Use these simple tips and the main hero of your book is guaranteed to be bright and outstanding.