Who Will Learn Oliver & Roy's Secrets On Arrow?

Warning: This post contains major spoilers for tomorrow night's episode of Arrow, "Canaries."

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Still with us? Smart call.

A major Arrow character is set to peer under the hood of Starling City's famed archers, finally learning the secret identities of both Arsenal and The Arrow.

And that person is non other than Thea Queen, Arrow's younger sister and Arsenal's former girlfriend. While that information could very well curse most others, it might end up saving Thea's life. As recent Arrow viewers know, Ra's Al Ghul and the League of Assassins are heading to Starling City for revenge against Black Canary's Killer—a title that Thea unfortunately happens to hold (but it's not her fault--she was drugged!).

With Thea entering the League's cross-hairs, Oliver decides that it's time to let his little sister in on the family secret. As a leaked Canadian promo for tomorrow's episode revealed, Oliver will share his secret identity with Thea in order to keep her safe from the League's clutches. You can check out the video below.

But that's not the only bombshell Arrow will drop on Thea. As executive producer Marc Guggenheim leaked to Entertainment Weekly today, Thea will also discover that Roy is Arsenal, The Arrow's crimson-clad partner.

That's a lot of information for Thea to absorb in one night. But now that the younger Queen is finally in on the family secret, perhaps she finally don a quiver of her own and live up to that Speedy nickname?

Arrow airs Wednesday nights at 8:00 p.m. on The CW.