Iron Fist is an American streaming television series created for Netflix by Scott Buck, based on the Marvel Comics character of the same name. It is set in the Marvel Cinematic Universe (MCU), sharing continuity with the films of the franchise, and is the fourth in a series of shows that lead up to a Defenders crossover miniseries.

The series stars Finn Jones as Danny Rand / Iron Fist, with Jessica Henwick, Tom Pelphrey, Jessica Stroup, and Sacha Dhawan also starring. They are joined by Ramón Rodríguez, Rosario Dawson and David Wenham in the first season, with Simone Missick and Alice Eve starring in the second. In addition to original characters, several characters based on various Marvel properties also appear throughout the series.

Daniel "Danny" Rand / Iron Fist (portrayed by Finn Jones) is a billionaire Buddhist monk and martial artist proficient in kung-fu, with the ability to call upon the mystical power of the Iron Fist.

Jones described the character as "someone struggling to find his identity", and identified with the character's loneliness being an orphan like Rand. He noted that "Danny gets really stressed and really pissed off sometimes, and I understand that ... [his] optimism and where that comes from." In preparation for the role, Jones studied kung fu, wushu, and tai chi, along with weight training, Buddhist philosophy, and meditation. Toby Nichols portrays a young Danny Rand.

Colleen Wing (portrayed by Jessica Henwick), a bushido master, is sensei of Chikara Dojo in New York City, and is integral to Daniel Rand's reintegration into society, foiling an attempt by Ward Meacham to have Rand indefinitely committed to Birch Psychiatric Hospital.

Henwick felt the most defining word for Wing was "alone", saying, "She doesn't want to be anyone's love interest and open herself up in that way." Henwick also tried "to pull out that sort of very dry humor that [Wing] has, and that no bullshit New Yorker demeanor" from the comics version in her portrayal.

Ward Meachum (portrayed by Tom Pelphrey) is the son of Harold and childhood acquaintance of Rand, whose work building up Rand Enterprises with his sister Joy is threatened to be undone with Rand's return.

Ward is a character from the comics, but with altered familial connections. As Pelphrey noted, "we're not necessarily beholden to representing him [in the series] exactly as he appears in the comic book." Stroup said that Ward would experience some "male angst" on Rand's return, because "Ward would have been the one who picked on [Rand] when he was little so as pure and innocent and great as Iron Fist is, he comes in and he causes some problems" there. Ilan Eskenazi portrays a teenage Ward Meachum.