I think it's fair to say that most stand-up comedians are going to be ENXP with some obvious exceptions (Dane Cook). Alternative comedy seems to be made up almost entirely of ENTPs.
I disagree. There are a lot of introverted comedians. That's how they got into comedy. They weren't good at the social situations, so instead they made sarcastic observations about the people that were. And eventually got enough nerve to do it in front of an audience.
I also believe there are plenty of Sensor comedians too. Just off the top of my head I think of Kevin James, Adam Ferrara, Tim Allen, Rodney Carrington, all of the Blue Collar tour guys, Damon Wayans, Drew Carey, Pauly Shore, Norm MacDonald, Jamie Foxx, Louie Anderson, Roseanne, Jim Breuer, Frank Caliendo, Andrew Dice Clay, Martin Lawrence, Jay Leno, Cedric the Entertainer, Tracy Morgan, Eddie Griffin, Jeff Dunham, and many more but I'm tired of listing.
Point is, there are a lot of SPs in comedy too.