Cloud

As the age-range of the average video game player continues to increase, its only natural that game makers will begin to develop more mature titles as their demographic becomes more mature itself.  This is not to mean that games require more blood, gore, or sexuality.  Sometimes, older gamers only need a figure that they themselves can identify with.  

Instead of creating entire new franchises that feature fresh, adult-themed characters; the world of gaming can just take its existing superstars and transform them into more mature figures of the industry.

There's no easier way to do this than by slapping a beard on several established characters.  Because there's nothing more mature than a man with a ferret on his chin.

Mario

Solid Snake

Sonic

Link

PacMan

Master Chief

Fox McCloud

MegaMan

Lara Croft