Awww remember Dr. John Carter on E.R.? Played by Mr. Noah Wyle. I guess it is stressful being a doctor - whether real or for television.
Noah spent many years hiding his receding hairline, but at this point it is too far gone to completely hide. Below you can see if you take a quick look, you won't notice anything. But if you give it a few seconds you can see the hair receding on the front sides.
And here's his real hairline: