This is Thaddeus Kalinoski. He was living a relatively normal life, until he lost his job as a hotel manager and his wife left him. In the wake of these disappointments, Kalinoski put on 20 pounds and stopped shaving.
Now he looks like this!
His friends started to notice that he looked a lot like Alan from the Hangover. After a few of these comments he decided to see if he could make some money out of his new looks.
He took a boys trip to Las Vegas, and ended up staying. Now, he makes $1000/night for appearances as Alan.