As they commiserated over beers, JD learned that Mackey has a teenage son back in the States.
TVLine spoke with NCIS: Sydney showrunner Morgan O’Neill about Mackey’s shared secret, and what’s to come of her and JD’s new… closeness.
TVLINE | During that reveal, Mackey and JD got kind of cozy there at her apartment.
So, the push and pull of that is really at the core of a lot of what Mackey and JD do.
But certainly, you’ve got an interesting situation where you got two really talented, really front-foot, attractive, single people working shoulder-to-shoulder at that level.

NCIS: Sydney Boss on ‘Huge’ Season 2 Premiere Reveal, Mackey’s Cozy Hang With JD: ‘It’s a Pretty Combustible Combination’ — Grade It!