Randall “Mouch” McHolland (Played by Christian Stolte)
First Episode: Season 1, Episode 1
Mouch got his nickname because of his penchant for watching TV on the couch, hence the half-man/half-couch moniker. But after suffering a heart attack and a near-fatal injury during a rescue call, the firefighter is currently in the best shape of his life and thriving, recently announced that he’s going to take the lieutenant test. He also got hitched to Chicago P.D.’s Trudy Platt, so he won the lottery, as far as we’re concerned.
Sam Carver (Played by Jake Lockett)
First Episode: Season 11, Episode 1
Carver was recruited to 51 by Chief Boden, himself, but not everyone was happy to have the firefighter on board truck at first: Tensions were high between Carver and his lieutenant, Stella, who described Carver as being “arrogant” during their shared fire academy days. days. Eventually, the two reached a place of co-respect, with Carver opening up to Stella about his troubled family history and how it led to his burn scars. He even appeared to develop romantic feelings for his married boss at one point, but now his heart belongs to paramedic Violet. After a rocky start, Carver has become a member of the 51 family, encouraging other newcomers like Derrick Gibson to accept the meddling-but-caring nature of this special firehouse.
Stella Kidd (Played by Miranda Rae Mayo)
First Episode: Season 4, Episode 15
When a divorced Stella joined the firehouse, she was already old friends with Gabby Dawson and shared a history with Kelly Severide, who once broke into her house with booze, not realizing she was married at the time. But little did she know that she would-be evening with Severide would eventually lead to her getting the playboy to finally settle down. (Thank goodness she ditched her troubled ex Grant!) And marriage isn’t the only accomplishment on Stella’s record: Seeing a void in the CFD, the firefighter started a Girls on Fire mentorship program and moved up the ranks to serve as lieutenant of Truck 81 with commanding grace.
Sylvie Brett (Played by Kara Killmer)
First Episode: Season 3, Episode 1
When the first paramedic joined the firehouse, she was a somewhat meek and naïve suburban gal trying to adjust to the big city. Brett even took a backseat in her relationships, with a controlling ex-fiancé from back home, and then another ex-fiancé, Kyle, with whom she moved to her small hometown even thought it was no longer the life she wanted. Eventually, Brett embraced her power and independence, thriving at work, where she became the Paramedic-in-Charge and launched a successful paramedicine program, while also marrying the love of her life, Casey. The couple now resides with their kids in Portland, Oregon.
Violet Mikami (Played by Hanako Greensmith)
First Episode: Season 8, Episode 10
Initially introduced as a temporary replacement on Ambulance 61, Violet has now been promoted to Paramedic-in-Charge after Brett’s exit. She’s also come a long way in her personal life, from her on-and-off relationship with firefighter Blake Gallo to her tragic love story with the late Paramedic Field Chief Evan Hawkins to her current attempt at a no-strings-attached dalliance with firefighter Sam Carver. Given everything that life has thrown at her recently, including have to say goodbye to her best friend Brett when she moved across the country, it’s no surprise that Violet’s spunk and competitiveness has somewhat mellowed from her debut, but in a way that’s only deepened the character. character.
Wallace Boden (Played by Eamonn Walker)
First Episode: Season 1, Episode 1
The firehouse’s stalwart chief has always been as dependable, honest and classy as they come, never wavering in his ethics or his leadership. But as little as Boden has changed as a person, there has been some major developments in his life over the seasons: For one, he got remarried and had a son, and more recently, he said goodbye to his beloved Firehouse 51 to take on the position of the CFD’s Deputy Commissioner.