Main

• Iko Uwais as Kai Jin, the main protagonist and a Chinese-Indonesian chef in San Francisco's Chinatown, who learns that he is the last of the Wu Assassins, whose duty it is to kill the five Wu Warlords, who possess supernatural powers based around fire, wood, earth, metal and water. As the Wu Assassin, he has increased physical strength and agility, is able to change his appearance to hide his identity, and can withstand the Wu Lords' supernatural attacks.
• Byron Mann as Uncle Six, a leader of the Triad who runs the criminal world in San Francisco's Chinatown and is Kai Jin's adoptive stepfather. As the Fire Wu he can create tendrils and projectiles made of fire, and can heat up and set objects alight.
• Li Jun Li as Jenny Wah, a young restaurateur who runs her family's Chinese-American restaurant, Master Wah's, and is Kai Jin's friend.
• Celia Au as Ying Ying, a woman who teaches Kai the ways of a Wu Assassin. She was the first Wu Assassin to hunt and fight the Wu Warlords, and only one of the first 999 Wu Assassins to successfully kill all 5 Warlords and imprison their collective Wu Xing powers, only to be stymied moments later when attacked, and killed, by a random soldier.
• Lewis Tan as Lu Xin Lee, Kai's friend who owns Lee's Wheels, a custom garage, which is also a front for two auto theft rings run by the Triad and McCullough respectively.
• Lawrence Kao as Tommy Wah, Jenny's older brother, who is a heroin addict and a member of the Triad.
• Tommy Flanagan as Alec McCullough, a Scottish crime boss operating mostly in Europe, who relocates to America to try to take over the Triad's territory in San Francisco's Chinatown. He is a former Wu Assassin who became the Wood Wu Lord, and as such is able to manipulate plants and trees, and has healing powers that result in him having an extended lifespan.
• Katheryn Winnick as Christine "CG" Gavin, an undercover inspector of the San Francisco Police Department, recently hired to work at Lee's Wheels.

Recurring

• Tzi Ma as Mr. Young, Kai's neighbor and a Chinese grocery owner
• JuJu Chan as Zan, the triad's lieutenant and Uncle Six's right-hand woman, though she is determined to become the triad's leader
• Mark Dacascos as an unnamed monk, whose body and face disguises Kai's identity when he fights as the Wu Assassin
• Cranston Johnson as Frank Fletcher, the police captain of San Francisco Police Department and CG's boss

Guest

• Jeff Fahey as Jack, a retired cop whom CG visits for information on Uncle Six (in "Fire Chicken")
• Robin McLeavy as Maggie McCullough, Alec McCullough's late wife (in "Codladh Sámh", "Gu Assassins", and "Paths: Part 2")
• Kevin Durand as James Baxter, the Earth Wu, who can control the earth, telekinetically move rocks, and turn flesh to stone (in "Legacy")
• Summer Glau as Miss Jones, the Water Wu, who can turn into and manipulate water (in "Paths: Parts 1 & 2")
• Travis Caldwell as Gideon, the Metal Wu, who can manipulate metal, electronics, electricity and possess people's bodies through their hemoglobin (in "Paths: Parts 1 & 2")
• Davin Tong as young Tommy.

Development

On June 29, 2018, it was announced that Netflix had given the production a series order for a ten-episode first season.^[1] The series is co-created, executive produced and co-written by John Wirth. Other executive producers include co-creator Tony Krantz and Nomadic Pictures' Chad Oakes and Mike Frislev. Stephen Fung will direct the first two episodes, with Krantz expected to helm another. In addition to playing the lead, Uwais also will serve as producer, lead martial arts and fight choreographer and stunt coordinator.^[4][5]

Casting

In June 2018, Uwais was cast in the lead role of Kai Jin.^[4] In the same month, it was announced that Byron Mann was cast in the series regular role as Uncle Six.^[6] In July 2018, it was announced that Tzi Ma, Tommy Flanagan, Lewis Tan and Katheryn Winnick were cast in their respective main roles of Mr. Young, Alec McCullough, Lu Xin Lee and Christine Gavin.^[7] In August 2018, it was reported that JuJu Chan and Mark Dacascos were cast in recurring roles.^[8] In October 2018, Lawrence Kao and Celia Au joined the main cast.^[9] In November 2018, it was revealed that Summer Glau was cast in the minor role of Miss Jones.^[10] In January 2019, Li Jun Li joined the main cast in the role of Jenny Wah.^[11][12]

Filming

Principal photography for the first season took place on location in Vancouver, Canada from August 8, 2018, to November 20, 2018.^[13]

Follow-up film

On February 26, 2021, Netflix ordered a 90-minute film project titled Wu Assassins: Fistful of Vengeance. It serves as a follow-up to the first season. Living Films was involved in the production of the film. Roel Reiné directed the film, with Cameron Litvack, Jessica Chou and Yalun Tu credited for the screenplay.^[14] After the film announcement, it was confirmed that Iko Uwais, Lewis Tan, Lawrence Kao and Juju Chan would reprise their respective roles (Kai, Lu Xin, Tommy and Zan) in Wu Assassins: Fistful of Vengeance. Additionally, it was confirmed that Pearl Thusi, Francesca Corney, Jason Tobin, Rhatha Phongam and Simon Kuke were cast in the film.^[14][15] Filming for Wu Assassins: Fistful of Vengeance took place in Thailand in early 2021.^[14][16] The film was released on February 17, 2022.^[3]