Everything you need to know about The Complete Guide to Jj’s Kids: Characters, Real Cast, and Trivia, featuring key takeaways.

A persistent source of online confusion around "JJ's kid" stems from an entirely different pop culture landmark: the long-running procedural drama Criminal Minds.

In the crime series, Special Agent Jennifer "JJ" Jareau, portrayed by actress A.J. Cook, goes through major personal milestones across fifteen seasons and its streaming reboot. Viewers watched her marry detective William LaMontagne Jr. and give birth to two sons: Henry and Michael LaMontagne.

The genuine trivia hook that keeps TV enthusiasts talking involves the casting of those children. Rather than hiring external child actors, the production brought in A.J. Cook’s real-life sons, Mekhai Andersen and Phoenix Andersen. Mekhai debuted on screen as infant Henry in early seasons and grew up in the role, while Phoenix made his entrance as newborn Michael in 2015.

Because both the animated toddler phenomenon and the procedural drama share massive digital search volumes, automated recommendation algorithms often interweave cast questions about A.J. Cook's real-life boys with queries about Moonbug's animated preschool stars.