Emmy Award-winner Michael Emerson has joined the cast of Arrow for the series' sixth season, as revealed at a panel for the DC Comics-based series at Comic-Con International in San Diego. The Lost alum will board the series in a recurring capacity; he will play a member of a villainous cabal.

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Emerson won an Emmy for Best Supporting Actor in a Drama Series for his turn as Ben Linus on the cult-favorite '00s ABC drama Lost. he would go on to be a series lead on CBS' hit procedural Person of Interest, alongside Jim Caviezel. He voiced the Joker in 2012's Batman: The Dark Knight Returns, Part 1 and 2013's follow-up, Batman: The Dark Knight Returns, Part 2.

Additionally, it was confirmed David Nykl (who plays Oliver Queen’s friend/mentor/nemesis, Anatoly Knyazev) will return to the series.

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Starring Stephen Amell as the Emerald Archer, Arrow returns Thursday, October 12 at 9pm ET/PT on The CW. The series also stars Emily Bett Rickards, David Ramsey, Willa Holland and more.