After Callen lays out the situation, Hanna says "You gotta love Tuesdays." The series airs on Tuesday nights.
Mary Page Keller plays three different characters within the same universe. Here she plays Angela Tully. On NCIS (2003), she plays Lt. Cmdr Michaela 'Micki' Shields, On JAG (1995) (which is where NCIS originated as a back door pilot), she plays Cmdr. Beth O'Neil in three episodes.
Clarence Fisk's issue with people saying his name mirrors Marvel's Wilson Fisk aka Kingpin killing people for saying his name in the first season of Daredevil (2015)