With the reappearance of The Monitor (LaMonica Garrett) in the season seven finale of Arrow, there’s no doubt that Oliver Queen (Stephen Amell) and Team Arrow will be facing a “crisis” unlike anything they’ve previously faced before. Cast and producers of The CW/Warner Bros. Television’s DC series elaborated on what’s in store for the future in Arrow’s final season San Diego Comic-Con panel on Saturday, July 20.

Following last season’s introduction of next-gen vigilantes Mia Smoak and Connor Hawke, Comic-Con fans were excited to learn of John Diggle’s other son, John Diggle, Jr., to be played by new series regular Charlie Barnett. Diggle, Jr. — known as J.J. — is the Flashpoint-born son of John Diggle (David Ramsey) and Lyla Michaels (Audrey Marie Anderson). We meet J.J. in the future as the leader of the Deathstroke Gang, where he faces off against Mia and his adopted brother, Connor.

Barnett joins previously announced new series regulars Katherine McNamara, Joseph David-Jones and Ben Lewis as Mia Smoak, Connor Hawke and Oliver Queen’s adopted son, William Clayton, respectively.

Arrow returns for its eighth and final season on October 15 in its new Tuesday 9/8c time period on The CW.