>>510598931
I found this:
https://www.familysearch.org/en/surname?surname=MACK
>Germanized or Americanized form of Hungarian Mák, Polish, Ukrainian, Slovak, Slovenian, or Croatian Mak , and a variant of the same Jewish (Ashkenazic) surname.

Also, a bit of a reach, but the Secret World of Alex Mack (1994-1998) has a never forget 9/11 reference in it.
https://youtu.be/flWMIOTb6YQ?t=40