The Jack Phenomenon

The other day I was watching something on tv that had a character named "Jack" in it, which got me to thinking about how there are a lot of characters named "Jack" on tv and in movies, and yet I cannot think of even one time where I've knowingly met anyone named Jack. 

What's going on here?  Is the evil liberal media misrepresenting the number of actual Jacks?  Is Hollywood so out of touch with mainstream America that they think there are more Jacks than there actually are?

Or is there something more nefarious going on?  According to this web site, in 2005 Jack was the most popular name for baby boys for the 11th year in a row in the United Kingdom.  Could it be that there is a secret US program, aided and abetted by a complacent, witless media, to build an army of Jacks to compete with the burgeoning masses of Jacks across the Atlantic?  You heard it here first, folks.