The newest member of the “Chicago Fire” family, “Chicago Med” began filming Wednesday in the Windy City, so it seems like a good time to get to know the men and women who will be roaming the halls of this fictional Chicago hospital.

Without further ado, meet the Med heads:

COLIN DONNELL (Dr. Connor Rhodes)

Colin Donnell

This “Arrow” and “The Affair” actor — spoiler alert — was killed off on his last two shows. He’s hoping to last longer on “Med.” “At least I’m surrounded by people who could potentially save me,” Donnell quipped about his character. “When we meet him it will be his first day coming to Chicago Med. He’s a trained emergency physician, which means all his training was to handle anything that comes through the door — gunshots, broken bones, stroke, heart attack — and be able to handle it quickly. He’s very much a self-made, sort of a blue-collar doctor. He comes from a humble background, never had anything handed to him.” Donnell got married in June to actress Patti Murin. “We started dating when we did Shakespeare in the Park in New York. We both do a lot of musical theater,” he said. “If they do a karaoke scene at Molly’s, I’m not opposed to jumping up and doing some Johnny Cash.” Donnell’s To Do List in Chicago includes dinner at Girl and the Goat and a Cubs game. “I’m a huge sports fan,” the St. Louis native said. “I’ll go to a hockey game any day. I’m a Blues fan, but I’ll whisper it. And if anybody wants me to sing the national anthem, I’ll gladly do it.”

BRIAN TEE (Dr. Ethan Choi)

Brian Tee

Eagle-eyed fans of “Chicago P.D.” might recognize Tee from an episode last season, when he guest starred as a Triad leader from Chinatown. Shortly after shooting that, the L.A.-based actor stuck around Chicago to film an NBC pilot, “Love Is a Four Letter Word,” along with Donnell. The show didn’t get picked up. “Everything keeps calling me back to the city,” said Tee, whose “Med” character was a bit aimless until he joined the military and became a Navy flight surgeon. Currently on away rotation with the military, Choi is an expert in infectious diseases. “I’ve done two or three medical shows being a doctor or EMT,” said the actor, whose mother is Korean. His Japanese-American father was born in an internment camp in California. Tee’s brother is a physician’s assistant, “so I’ve shadowed him a lot in the ER. Because he’s my brother, he tells me everything that goes on in a hospital.” Tee and his wife, “Lost” actress Mirelly Taylor, just had their first child last month. Tee could barely contain his excitement at being a new dad. Taylor and his newborn daughter, Madelyn Skyler, are moving here from sunny California so the family can be together. “I’ll be able to say my baby spent her first winter in Chicago. It’ll thicken her blood.”

YAYA DaCOSTA (Nurse April Sexton)

Yaya DaCosta at press tour.

DaCosta’s career has gone from “America’s Next Top Model” runner-up to playing the late Whitney Houston in Lifetime’s recent biopic and, now, she’s joined the growing ranks of black actresses landing starring roles in TV series. “What we’re seeing isn’t this arbitrary need to compose color into television as a statement,” she said. “We’re just reflecting what the world really looks like, especially in these big cities.” The part-Brazilian actress who speaks several languages already has popped up several times on “Chicago Fire,” where she plays April Sexton, Lt. Kelly Severide’s (Taylor Kinney) old friend. (And in one steamy episode, his friend with benefits.) “The chemistry’s great,” she said about April’s spark with Severide. “They’re friends from high school, but they never hooked up. We’ll see how that friendship develops.” DaCosta described April as “the nurse who keeps things running. She probably knows enough to be a doctor, she just doesn’t have the degree.” At the TV critics’ summer press tour in Beverly Hills, California, DaCosta was sporting a big head of natural hair. Not surprisingly, she looked great. A reporter asked if April would go natural on “Med.” “You can’t have a huge fro — I mean, you could. But on camera it’s less practical,” she said. “I’m working in the hospital. I’m going to have a ponytail 95 percent of the time. It’s probably going to be a little tamer, looser curl. What I like to call ‘ the safe curl.’”

S. EPATHA MERKERSON (Sharon Goodwin)

S. Epatha Merkerson

The Wolf universe is a familiar one to Merkerson, who spent 17 seasons on “Law & Order” as Lt. Anita Van Buren, fearless leader of the NYPD’s 27th Precinct detective squad. “I’m looking forward to getting out of the Van Buren hole,” said Merkerson, who plays the chief administrator at Med, the city’s largest hospital. “They’re both women of authority. Where we’ll have an opportunity to make Goodwin different is seeing what flaws she has.” Unlike Merkerson, her character is married. “She has four boys. There’s a great storyline coming with her and one of her sons.” A Midwest native, Merkerson has spent the last 40 years living in New York. “I grew up in Detroit. I understand the Midwest. My mom is getting older [she’s 88], so this is going to be lovely to be closer to home.”

A couple of other cast members weren’t at press tour because they signed on to the series shortly after the TV critics’ summer gathering ended. They are:

TORREY DeVITTO (Dr. Natalie Manning)

Torrey DeVitto

This “Vampire Diaries” and “Pretty Little Liars” alum plays a very preggers emergency pediatric medicine doc whose Type-A personality is about to be put to the test with the chaos that comes from being a new parent. “She’s a very grounded, Midwesterner — everything planned and according to schedule,” said former showrunner Andrew Dettmann, a week before word broke that he would no longer be in charge of the show’s writers’ room. “This is her first child. She’ll be in for a few surprises when the baby comes and throws a big wrench in her life.” I’m guessing by her name tag in the photo that she goes by Lilly, not Natalie.

RACHEL DiPILLO (Dr. Sarah Reese)

Rachel DiPillo

There always has to be a deer-in-the-headlights young doc who’s in over his or her head, and that would be first-year resident Dr. Sarah Reese, portrayed by “Jane the Virgin’s” DiPillo. This mega-talented overachiever has never had to struggle much at anything — until now. “She’s learning there’s a big difference between the A-plus know-it-all, book-smart student and when you have to get your hands on somebody and do chest compressions or intubations,” Dettmann said.

The 13-episode debut season of “Chicago Med” premieres Nov. 17 on NBC.