Technically, Jennifer “JJ” Jareau—played by the brilliant A.J. Cook—leaves the BAU at the end of Season 5, Episode 18, titled “The Fight.” But here’s the kicker: she doesn’t actually leave the show for good. She returns just a few episodes later, and then fully rejoins the team in Season 7. It’s a twisty road, my friend, and that’s what makes it so delicious to dive into.
Why does she leave? Spoiler alert: it’s a combination of a promotion she didn’t want and a wild, secret mission for the State Department. Think of it as a spy detour in the middle of a wild crime thriller. Fun, right?
The Emotional Rollercoaster (Or, Why You Shouldn’t Skip Episodes)
Here’s where it gets lighthearted: that “departure” is actually a masterclass in TV drama. You get to watch Hotch look stoic, Reid look confused, and Garcia shed a few tears. But the real gem? JJ’s exit isn’t a goodbye—it’s a plot twist. She leaves to protect her family and her own sanity, which frankly, is a vibe we can all get behind sometimes.
Don’t you love it when a show makes you feel something? That’s the secret sauce. The topic becomes fun when you realize that JJ’s return in Season 6 is even more epic than her exit. She comes back a total badass, with new secrets and a confidence that makes you want to cheer at your TV screen.
Jj Lewis