Worth mentioning here is Jack himself. Featured in every one of their TV and radio commercial's, Jack is the business suited CEO. His most distinguishing feature is his outlandishly large, perfectly-spherical head which looks like a large ping pong ball.

You can purchase a small antenna ball "Jack" head at any Jack in the Box restaurant which you can stick on the end of your car's radio aerial. Particularly sought after, the Millenium Jack special edition antenna ball, (complete with party hat and noise maker), was released last winter to celebrate the new millenium. This winter's oferring was rosy-cheeked Holiday Jack, wearing a scarf and earmuffs.

That's enough about Jack...