The nature of acting means that actors are a chameleon - they disappear into a role, oftentimes playing a character who is totally unlike themselves. However, sometimes this means it can be very hard to separate the man from the role - we cannot see the man as anything but who he plays on TV. One substantial example is the actor Robert Knepper, who played "T-Bag" on Prison Break, and subsequent bad-guy creeps in shows like Breakout Kings and Stargate Universe. All of his major performances seem to be of morally unscrupulous, unforgivable villains, all with nefarious motives and unpredictable tempers.
However, ...
