The Pixeloo blog and other websites have "untooned" and humanized cartoons and video game characters in the past. Those have included Jessica Rabbit, Homer Simpson, Mario and Bowser among others. This fead has occured with the help of graphic technology such as Photoshop, Mental Ray and others.
Now, Pixeloo has humanized Niko Bellic. Nico is a fictional character in the Grand Theft Auto video game series, serving as the anti-heroic protagonist and player-controlled character in Grand Theft Auto IV. Very good job.
Here are more untooned and humanized cartoons and video game characters