Impressions come in many different styles of impersonation, and varying qualities of the actual impression itself. There is definitely an endless supply of terrible impressions, but there is also a nice healthy sized collection of spot-on impressions. metimes the physical resemblance to the subject, or their mannerisms.
This guy decided to shake it up, and do some impressions of how different actors run in movies or TV shows they were in. Tell me what you think in the comments.