A well written protagonist will generally have some flaws, starting out as an underdog of some kind, with lessons to learn and improvements to make over the course of the story.
Granted, some heroes are, well, just heroes, who are pretty much who they need to be from the beginning ...

Character Arcs Part 2: Arcs in Sequels and Series featuring Iron Man
Banes at 12:00AM, March 24, 2016The Old, the New, History and Nostalgia
Banes at 12:00AM, Jan. 28, 2016
Pop culture is being visited by its own past. There's no denying the excitement surrounding the reappearance of the original Star Wars and X-Files characters after an absence of years.
We all know our mainstream entertainment is stuffed with more and more sequels, remakes, reboots, soft reboots, reimaginings, reintegrated ...
Casting Part Deux: 4 and More
Banes at 12:00AM, Dec. 17, 2015
Last time, solo heroes, teams of two, and trios were the order of the day. Today let's talk quartets, quintets, sextets, septuplets, octets, and…uh…neuf-tets…?
More possibilities for self-contained drama/comedy/conflict exist with groups of four or five. There are several ways to begin building such a ...
Wish Fulfillment
Banes at 12:00AM, Dec. 3, 2015
In the movie Annie Hall, the main character writes a play and uses it to give his failed relationship a happy ending.
There are countless stories where awkward, nervous protagonists…perhaps courtesy of awkward, nervous writers…win the battle, defeat the villains and get the gorgeous girl.
An unknown number ...