Sarah Jones as Ashley; aCIA field agent who works as Frank's manager, who seeks to dismantle an undercover red criminal[2]
Eric Lange as Simon Casimir / The Nazarite; reformed criminal and monk possessed of superhuman strength[3]
Lorenza Izzo as Rosa; a stranger to the world of wealth into which she has married, and the first to recognize the sharks that surround her family[1]
Adriana Barraza as Alma; widow of Frank's father and who helps him on his missions. In the 1970s, she discovered that her husband was the masked vigilante known as "El Gato Negro"[2]
Alfonso Dosal as Alejandro "Alex" Guerrero; a cruelOxford executive and director of a multimillion-dollar agricultural company, he is Gabriel's ambitious nephew who was once like his brother[3]
Angela Sarafyan as Elisa Kazanjian; A cold former CIA agent with a traumatic past. She works inMexico City investigating the criminal past of agricultural billionaire Gabriel Guerrero[4]
In February 2019,Deadline Hollywood reported thatMGM Television is developing aEl Gato Negro television series, with Mexican actorDiego Boneta starring and executive producing the series through his production company Three Amigos, and with Joel Novoa as co-executive producer. In September 2019,Robert Rodriguez joined the project to direct and executive produce, with the series originally slated forApple TV+.[5] British-born entrepreneurMark Burnett along with AmericansSteve Stark, Kai Dolbashian, Joel Novoa-Schneider and Mexico's Marilú G. Carranza would serve as executive producers of the series.[5] The creator of the original comic book,Richard Dominguez, owner ofAzteca Productions, granted the rights and permissions for the use of his characters.[5]