Long before Boston Blue became the new home of the Reagan family story, one of Blue Bloods’ most popular characters was Detective Jennifer Esposito as Jackie Curatola, Danny Reagan’s original partner.

For the first three seasons of Blue Bloods, Jackie and Danny formed one of the show’s strongest crime-fighting teams. Their chemistry, trust, and ability to challenge each other made them fan favorites. While Danny often relied on instinct and emotion, Jackie brought a calmer and more methodical approach to investigations, creating a partnership that viewers loved.

That is why Esposito’s departure in 2012 generated so much attention.

At the time, the actress left the series following a highly publicized dispute involving her health and work schedule. Esposito, who had been diagnosed with celiac disease, stated that health issues affected her ability to continue working under the production’s demands. Her exit became one of the most talked-about cast changes in the show’s history.

For years afterward, fans wondered whether Jackie would ever return.

The answer finally arrived during Blue Bloods‘ final season.

In a surprise move that delighted longtime viewers, Jennifer Esposito reprised her role as Jackie Curatola for several episodes. Her reunion with Danny Reagan immediately brought back memories of the show’s early years, and many fans praised the writers for giving the character a meaningful return rather than simply mentioning her off-screen.

The comeback also reminded audiences why Jackie remained so popular.

Even after years away, the dynamic between Jackie and Danny felt natural. Their shared history, mutual respect, and occasional disagreements still worked exactly as fans remembered.

Today, as Boston Blue continues building its own identity, viewers frequently ask whether Jackie could appear again.

At the moment, there has been no official announcement that Jennifer Esposito will join the spin-off. However, the possibility remains intriguing. Since Danny Reagan remains the central character of Boston Blue, bringing back one of his most important former partners would be a natural fit.

Many fans believe a guest appearance could create a compelling storyline. Jackie could arrive in Boston to assist with a major investigation, reconnect with Danny professionally, or simply provide an update on where life has taken her since leaving New York.

Outside the Blue Bloods universe, Jennifer Esposito has remained busy. The actress has appeared in numerous television projects over the years, including roles in NCIS, The Boys, and Law & Order: SVU. She has also worked as an author, entrepreneur, and advocate for celiac disease awareness.

Despite her many accomplishments, Jackie Curatola remains one of the roles most closely associated with her career.

And judging by fan reaction whenever her name comes up, viewers haven’t forgotten.

In fact, among all former Blue Bloods characters who could potentially appear in Boston Blue, Jackie may be one of the most requested. The combination of unfinished history, strong fan support, and her deep connection to Danny Reagan makes her an ideal candidate for a future guest appearance.

Whether it happens next season or further down the road, one thing is certain: whenever Jennifer Esposito returns as Jackie Curatola, longtime Blue Bloods fans will be watching.