To get the ball rolling... (can be fictional or real) Jack Bauer Jack T. Colton Jack Black Jack Nicklaus Jack Nicholson My vote goes to... Jack Burton
Also: Johnson (boxer) Kevorkian Kerouac Bruce The Ripper London Hanna Straw (song) Fun Fact: if you google "greatest jacks of all time" the top result is @Jontro's onlyfans site Poll: White vs Black? Who ya got?
this is some serious honorable mention. I'm making the executive decision that "Mick" is close enough to "Jack"
Jack Hoff - EVERYONE knows this guy but he is pretty much my best friend. I first met him when I was 13. I remember my mom telling me that he was not good for me and to avoid him but we ended up becoming best friends. At first, we would hang out at least 2 or 3 times a day. Usually we would watch movies or read magazines. I still see him almost everyday, although oddly enough my wife has never met him. I suspect she probably has a friend like that too though.