Oliver Stark discusses first Responders on and off-screen.

PC: Over the past few years, we’ve seen a rise in shows centered around first responders. How does 9-1-1 differentiate itself?

Oliver Stark attend the Cuban-Themed Fundraiser Honoring Los Angeles Firefighters at Ceremony Bar on December 05, 2018 in Studio City, California.

Oliver Stark was photographed by Ian Spanier for TheWrap.

On his co-star Ryan Guzman: “People probably think that we’ve known each other from before the show, which isn’t the case. We just immediately got on very well and enjoy each other’s company and have a really good rapport.

We've added screenshots from Episode 10, "Merry Ex-Mas," of Season 2 of 9-1-1.

The inteview of Oliver Stark and Ryan Guzman for Dish Nation.

We've added screenshots from Episode 8, "Buck, Actually," of Season 2 of 9-1-1.

We've added screenshots from Episode 7, "Haunted," of Season 2 of 9-1-1.