Daniel Wu, who plays Sunny, one of the lead characters in the show, does most of his stunts and fighting scenes himself, unlike some other members of the cast. He has been learning wu shu and other martial arts since he was a young boy, and still practices.
Choreographer, Master Dee Dee Kuma's (Huan-Chiu Ku) who was a stunt double for a number of Jet Li films, as well as choreographer for the Matrix, Kill Bill, and Crouching Tiger, Hidden Dragon is credited with instructing fight choreography for the series.
The series was shot on the plantations and surrounding areas of Edgard, Louisiana. Django Unchained (2012) was filmed in the area.
The motorcycle that Sunny rides is a steampunked 1999 Excelsior-Henderson Super X. Excelsior-Henderson only produced motorcycles for two years - 1999 and 2000 (not including a handful of one-off "prototypes" that were produced in 1998).
The series production moved to Ireland from the second season on.