It is set in the Marvel Cinematic Universe (MCU), sharing continuity with the films of the franchise, and is the first in a series of shows that lead up to a crossover miniseries, The Defenders.
The series stars Charlie Cox as Matt Murdock / Daredevil, as well as Deborah Ann Woll, Elden Henson, Rosario Dawson, and Vincent D'Onofrio.
Murdock and Nelson decide to start their own law firm, and through their first client, Karen Page become embroiled in the politics of post-Incident Hell's Kitchen.
Joining Murdock and Nelson as their paralegal, Page is determined to take down the corruption in Hell's Kitchen and works with reporter Ben Urich to expose Fisk.
James Wesley (portrayed by Toby Leonard Moore) is Wilson Fisk's right-hand man and friend who does a lot of his hands-on work.
[16] Moore described Wesley as an "interesting character to play, because in one moment he can be incredibly charming, and in the next, dastardly as all hell, manipulative and Machiavellian, but always loyal to Wilson Fisk.
"[7] Benjamin "Ben" Urich (portrayed by Vondie Curtis-Hall) is an investigative journalist for the New York Bulletin, struggling with the lack of interest in the crime pieces that made him successful during his youth, and with his sick wife for whom he can barely afford to keep in hospital or move to a retirement home.
[16] Vanessa Marianna-Fisk (portrayed by Ayelet Zurer) is an art gallery curator who catches the eye of Fisk, and is acceptive of his line of work.
[16] Clinical psychologist Dr. Andrea Letamendi noted that Marianna "allows us to see the compassion Fisk has, and it's genuine that he's so loving and heartfelt and compassionate—he has this sense of connection to humanity.
"[18] Maslansky looked to Marianna's backstory in the show, with the character coming into the series as a mysterious yet glamorous femme fatale, dressing in high-end, couture clothing; "she needed to appeal to [Fisk].
"[13] Dawson explained that "[her] character is a normal person and she becomes more heroic in a way that she maybe didn't expect",[15] and went on to state that "She's not a love interest – she's this skeptical eye looking at this strange situation.
His mother, who was often beaten by her husband, helped him cover it up, and Fisk grew up wanting to make Hell's Kitchen a better place, with no people like his father.
Daredevil spares Kingpin's life and promises he will leave Vanessa unharmed in return for his going to Rikers Island and not harming Karen or Foggy.
He also said that "if you're looking for a juicy, multi-faceted crime drama, Wilson Fisk was the obvious choice to play the antagonist [...] [he] really felt like the right yin to the yang for Matt, and for what we wanted to do this season.
[30] Francis "Frank" Castle Sr. (portrayed by Jon Bernthal) is a vigilante who aims to clean up Hell's Kitchen by any means necessary, no matter how lethal the results,[31] which earns him the name 'The Punisher' from the media.
[31][33] DeKnight and the writers had discussed introducing the character in a post-credits scene during the first-season finale, but were unable due to the way that Netflix begins the next episode during the credits of the current one.
"[37] Petrie stated that Son of Sam, Bernard Goetz, and Travis Bickle from Taxi Driver were influences on the character,[37] as well as current events, saying, "Taking lethal justice into your own hands in America in 2015 is tricky shit.
Bernthal also "had to put myself in as dark of place as possible" to connect with "the emptiness inside" Castle, and isolate himself, including walking across the Brooklyn Bridge to get to set "to shed any outside influence of joy.
Samantha Reyes (portrayed by Michelle Hurd) is a New York District Attorney, who goes against Nelson and Murdock for the People v. Frank Castle trial.
"[18] In season 3, Father Lantom and Sister Maggie secretly take Matt in and nurse him back to health following the events of Midland Circle in The Defenders.
At the end of the season 3 finale, Matt gives a eulogy for Father Lantom in the church with Karen, Foggy, Marci, Ellison, Brett, and Tower all in attendance.
[52] Carl Hoffman (portrayed by Daryl Edwards) is a detective with the New York City Police Department's 15th Precinct and partner of Christian Blake that is secretly on Wilson Fisk's side.
Christian Blake (portrayed by Chris Tardio) is a corrupt detective with the New York City Police Department's 15th Precinct who is secretly in the employ of Wilson Fisk, and is partnered with Carl Hoffman.
[57] After Daredevil attacks him and grabs his phone, obtaining crucial information, Fisk arranges for Blake to be shot by an ESU sniper outside the scene of a standoff, along with two other officers.
Madame Gao (portrayed by Wai Ching Ho) is an accomplished older woman with her own heroin trade in Hell's Kitchen who allies with Wilson Fisk and Leland Owlsley, as well as being a boss in The Hand.
During the wake following the funeral, she is disappointed that Foggy has decided to concede the District Attorney race to Tower, but respects his desire to go back into business with Matt and Karen.
Johnson (portrayed by David Anthony Buglione) is an FBI agent on Ray Nadeem's team serving as Fisk's protective detail.
Felix was responsible for arranging for Vanessa to be moved to a safe location, made people "disappear," provided a new workshop for Melvin Potter so that he can make a duplicate Daredevil outfit for Benjamin Poindexter, and assisted Tammy Hattley into getting Ray Nadeem to cooperate with Kingpin.
Allison Winn, Doug Plaut, Massiel Mordan, and Shari Abdul play incubators for the Hand's chemical farm alongside Daniel Gibson.
Roy Thomas makes a cameo appearance in the episode "Blindsided" as a prisoner at Rikers who witnesses Kemp beat up Murdock under the alias of Foggy Nelson.