'Ringer' casts 'Dexter' alum, Sarah Michelle Gellar doubles up in new pics

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If anticipation for "Ringer" reached critical mass after upfronts, it's near-nuclear on the eve of the new CW series' Comic-Con debut.

And just in time for the show's inaugural panel, the network has released two new promotional images. First posted by EW, one features the entire cast ( Kristoffer Polaha, Ioan Gruffudd, Nestor Carbonell and two Sarah Michelle Gellars) and the other is of the leading lady herself.

Also of note on the "Ringer" front? TV Guide reports actress Jaime Murray (who you might best remember from going absolutely crazy on Season 2 of "Dexter") will appear in episode 2 of the freshman season. She'll play the possibly recurring role of Olivia, Andrew's (Gruffudd) business partner and lone female colleague.

"Ringer" premieres Tuesday, Sept. 13, at 9:00 p.m. ET -- but for now... pretty pictures:

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Photo/Video credit: The CW