William Shatner
From TeeVeePedia, the Internet TV Encyclopedia.
Star Trek's Captain Kirk, William Shatner is the only living man known to have a symbiotic relationship with a fluffy hamster. The hamster has been embedded into the skin of his scalp, where it functions as a hairpiece.
Rumors that the hamster is, in fact, an alien overlord have never been proven.
Some observers suspect that Peter MacNicol may also have developed hamster symbiosis, but this is likewise unproven.
..."O.K., let's see, Shatner, Shatner... no, it doesn't look like he's in this one. We're safe."
..."Wait, aaughh! My eyes, my brain, my soul, my everything! Hurrrrts!"
