A new Big Bad is coming to The CW's "Arrow" next season -- and now, we can get our first glimpse at him!

On Saturday at Comic-Con, star Stephen Amell revealed (while moderating the Warner Bros./DC Comics panel) that the main villain in season 3 will be none other than Ra's al Ghul. (For "Batman" fans, Ra's al Ghul was played by Liam Neeson in "Batman Begins" and "Dark Knight Rises.")

He played an extended trailer that featured 15 seconds of footage of al Ghul, as other characters talk about the baddie.

"If half the stories I've heard about Ra's al Ghul are true, we will all pay," Amell's Oliver Queen/Arrow says.

No word yet on who will play al Ghul, but he certainly looks ominous already. "Arrow" Season 3 premieres Oct. 8 on The CW.