Please tell me that was a rhetorical question. It is obviously Mark! The bit is funny because it is soooooo bad. Mark has to be one of the worst Santa impersonators on earth! I'm not really sure why, but he gives Santa some strange accent. If you listen carefully, Santa uses long winded sentences yet never takes a breathe. It sounds like he can barely get the last few words out because his lungs are running out of air. Much like Mark, Santa tends to ramble and seems to often be confused. The best is when whoever is controlling the echo that they give Santa's voice
forgets to turn it off and Mark is beginning his next break but still has the echo on!