On Callseries creator Elliot Wolf has explained whether Wolf Entertainment’s latest streaming series takes place in the sharedOne Chicagouniverse. The Prime Video series is the first from the production company to be a half-hour per episode, focused on officer Traci Harmon (Troian Bellisario) and rookie Alex Diaz (Brandon Larracuente) as they respond to calls in Long Beach, California. The procedural style is similar to other shows produced by the studio, including those that fall under theLaw & Order,One ChicagoandFBIumbrellas, created by Dick Wolf. These three franchises also connect in the same universe.
Speaking withVariety, Wolf explained thatOn Calldoes not currently take place in the same universe as his father’s franchises,One Chicago,Law & Order, andFBI. However,the series creator is open to the idea. He explained how it could still work even though actors like Monica Raymund, who plays Gabby Dawson inChicago Fire, appear in different roles on the show, citing how Wolf Entertainment’s other series reuse actors. However, he does admit it would take monumental effort for its placement to become canon. Check out what Wolf had to say below:

They never are until they are…. I think that there’s a lot of people who would have to figure a lot of stuff out if that were to ever happen, but we’re on the west coast. It’s a flight away. We’ll see.
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Dick Wolf’s shows all take place in the same universe, with someOne Chicagocrossoversalso happening withLaw & Order,Law & Order: SVU, and one withFBI. Although some actors portray different characters across the franchise,like Jesse Lee Soffer playing Jay Halstead inChicago P.D.and Wesley Mitchell inFBI: International,the stories still maintain their in-universe connection. Because of this, Raymund’s appearance as a cop who gets killed in one episode doesn’t deterOn Callfrom a possible future connection to the others.
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However, there is some trickiness to the situation, given the other shows air weekly on TV networks, whileWolf’s series is exclusive to Prime Video. This doesn’t mean thecast ofOn Callcouldn’t appear on aOne Chicagoshow, for instance, but distribution rights and ownership would make it more difficult for all the series to connect. It’s not impossible, sinceFBIbeing on CBS didn’t stop Hailey Upton (Tracy Spiridakos) from NBC’sChicago P.D.from appearing in one episode. But it hasn’t happened since, signaling the unlikely nature of such a crossover again.

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Because there aren’t any other shows in Wolf Entertainment’s shared universe that take place in Long Beach, California,On Calldoesn’t need to have any direct connections to other shows. However, even if it does, the unique, singular location of the series contrasted with all the other ones spread across the United States means a crossover is very unlikely. Perhaps future seasons can have throwaway lines revealing its placement in the shared universe, without making it something the series relies on all that much. Even if a crossover would be exciting to see.
On Call
Cast
On Call follows veteran training officer Traci Harmon and rookie Alex Diaz as they navigate the aftermath of a fellow officer’s death and the complex politics of modern policing in Long Beach. The series highlights the challenges and dynamics within the department and on the city’s streets.
