Marina Squerciati Pulls Off the 'Wildest Crossover Ever' in 'Insane' Photos With Stars From 'The Rookie,' '9-1-1,' 'S.W.A.T.' and More Members of the First Responder 'Multiverse'
Chicago P.D.star Marina Squerciati has fans sounding the alarm after she unveiled the "one of the wildest crossovers ever" with her latest Instagram post.
The actress shared several photos on the social media platform this weekend, featuring a variety of fellow faux first responders from no less than five other emergency response-focused television shows: Grey's Anatomy spinoff Station 19, 9-1-1, its spinoff 9-1-1: Lone Star, S.W.A.T. and The Rookie-effectively gathering "TheAvengers" of the emergency "multiverse."
In the first picture, she posed between 9-1-1'sOliver Stark and Grey's and Station 19 alum Stefania Spampinato. The large group photo also featured Lone Star'sRafael L. Silva and Ronen Rubinstein-who is set to star in Shemar Moore'sS.W.A.T. spin-off S.W.A.T. Exiles-and OG Grey's star James Pickens Jr. Of course, Squerciati's on-screen husband Patrick John Flueger was also featured.
In the second photo, she and Flueger excitedly mugged with their former co-star and current The Rookie actress Lisseth Chavez, who has also been seen in episodes of Grey's, Station 19, and S.W.A.T.
It's unclear what the crew was doing all together, but Squerciati was excited to "[make] some new friends"-and, of course, "spot an OLD ONE! 😜."
Fans could hardly process the absolutely "insane collab," with one calling it "one of the wildest crossovers ever."
"All five theme songs playing at the same time like a mashup nobody asked for but EVERYONE needed," one joked in the comments.
"Someone call dispatch because this crossover is a LEVEL TEN EMERGENCY for my serotonin," someone else exclaimed, while another called it "a FEMA‑level emotional disaster."
"My brain can't handle these worlds colliding!" another viewer admitted.
Someone else pointed out how "every character here has survived at least three catastrophes and one emotional breakdown per season," marveling over "the power" the carousel of photos holds.
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This story was originally published May 25, 2026 at 12:01 AM.