Recently I was watching Twin Peaks and was struck with how much Agent Cooper reminded me of Stephen Colbert (as he is on the Colbert Report).  To the point that I wonder if Colbert used Kyle MacLachlan's performance as inspiration when forging that persona.  Or I'm crazy, I do know I'm very prone to think most people look like some other person until I know them well.  
 
Also, the Endurance Runs have ruined me and it takes real effort not to think of him as Agent York.