Devon Aoki joins 'Arrow' as Katana

Meet Oliver Queen’s new mentor. Sin City‘s Devon Aoki is joining the third season of Arrow in the recurring role of Tatsu Yamashiro, known to comic-book readers as the sword-wielding Japanese hero Katana.

On Arrow, Katana is the wife of Oliver’s handler in Hong Kong, and will thus appear in the flashbacks to Oliver’s time with ARGUS. Aoki’s character will be “a critical influence on his [Oliver journey to eventually become The Arrow of present day,” reports Deadline. It is not clear if we’ll see her in present-day Starling City.

Following DC Comics’ reboot, Katana joined the all-female crime-fighting group Birds of Prey—of which Black Canary,who has already appeared on Arrow, is also a member—and was recruited by Amanda Waller to join the United States’ Justice League of America, a team created to defend against the Justice League. Recently in the comics, it was revealed that Green Arrow and Katana share a connection to The Outsiders, a society formed of seven weapon-based clans: the Sword, the Arrow, the Spear, the Fist, the Shield, the Ax, and an unknown weapon.

Arrow returns on October 8 at 8 p.m. ET.