The busiest TV studio at this Comic-Con (and just about every recent Comic-Con), Warner Brothers TV is descending on San Diego on Saturday (July 23) with vampires ("The Vampire Diaries"), lovable spies ("Chuck"), sexy assassins ("Nikita") universe-bending investigators ("Fringe") and time-bending investigators ("Alcatraz").
 
Oh and there will also be witches. The sexy teenage witches (and warlocks, I suppose) of "The Secret Circle" will make their Comic-Con debut on Saturday afternoon with a pilot screening and panel in Room 6BCF, featuring stars Britt Robertson, Thomas Dekker, Phoebe Tonkin and Natasha Henstridge, plus producer Kevin Williamson, who will be sprinting to this panel from "Vampire Diaries" in Ballroom 20 (one of a slew of panels I'll surely be live-blogging). 
 
As a little treat, HitFix has an exclusive first look at the special-for-Comic-Con "Secret Circle" poster that'll be available at the WB booth on the exhibition floor on Saturday afternoon.
 
Check it out, after the break.
 

The Comic-Con poster for The CW's

 
"The Secret Circle" premieres on The CW on Thursday, September 15 at 9 p.m.