'Chicago Fire' season 3 spoilers: Serinda Swan added to cast, new character stirs conflict to Severide-Lindsay romance

Photo from "Always" - "Chicago Fire" Season 3 Episode 1[Photo credit: Chicago Fire | NBC]

"Chicago Fire" season 3 will be adding in Serinda Swan of USA Network's "Graceland" as a new cast member, reports have claimed. The actress will be portraying the role of Brittany Baker, who is expected to develop a love affair with Lt. Kelly Severide, played by Taylor Kinney.

Being a graphic designer and a potential romantic flame, Swan's character is likely to interfere with the relationship between Severide and Detective Erin Lindsay, and will appear in four episodes for the third season, according to Moviepilot.

Severide and Lindsay, played by Sophia Bush, have already been faced with a difficult love triangle with Detective Jay Halstead, portrayed by Jesse Sofer, acting more than a close working partner to Lindsay.

Showrunner Matt Olmstead explained to TVLine as to what the audience can expect from the brash firefighter if he moves forward on his own, especially if he finds himself in conflict with his girlfriend.

"As we've established on the show, he (Severide) is prone to going off on his own and having a few cocktails when things don't go his way," Olmstead stated. "It might cause a problem with him and Lindsay. The thing we like about him and Lindsay is they're cut from the same cloth. They don't judge each other. No one's ragging on the other person for not being available. They're really similar."

Aside from regularly starring on Jeff Eastin's drama series "Graceland," 30-year-old Swan has already appeared in A&E's "Breakout Kings."  She was also featured in "Smallville" and "The Tomorrow People."

Although "Graceland" has not been slotted for a third season yet, the series recently concluded its season 2 last Sept. 10.

"Chicago Fire" season 3 will have an official premiere date on Sept. 23, Tuesday, on NBC. The pilot episode has been highly anticipated as it is expected to reveal the surviving characters from last season's fiery explosion.