TheOne Chicagofranchise began withChicago Firewell over a decade ago and has since expanded to include two other shows.

Created byDick Wolf, the franchise now includes equally successful and beloved shows inChicago MedandChicago Fire.

He was just really, really hard to work with.

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Image via NBC

No, that’s a joke.

c’mon don’t take that seriously.

We have Dermot Mulroney on our show.It’s so crazy to say that.

Chicago Fire Movie Poster

Chicago Fire: Focusing on the professional and personal lives of the firefighters, paramedics, and rescue squad members of Firehouse 51, the series navigates the high-pressure situations and camaraderie that define their work, revealing the challenges and triumphs faced by these dedicated public servants.

It’s always going to be a pleasure to work with any of these people.

And so just to be in that hemisphere is incredible.

Who Makes Up the Vast One Chicago Universe?

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TheOne Chicagocrossover event will premiere on Wednesday, January 29, from 8 p.m. to 11 p.m. Catch up on all three shows on Peacock.

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Chicago Fire

Chicago Med