Katherine McNamara Teases 'Bloody' Season Ahead For 'Shadowhunters' in New Set Pic

Katherine McNamara looks like she just got out of a major fight in this behind-the-scenes pic from Shadowhunters.

“Last night was bloody good… #BTS #ShadowhuntersSeason2,” the actress captioned on Twitter, with a few bloody spots on her face.

PHOTOS: Check out the latest pics of Katherine McNamara

A brand new promo was just revealed for the upcoming second half of season two — and if you tore your eyes away from the Jace-Clary-Simon triangle, you would’ve see the first appearance of Sebastian!

Watch it NOW on JJJ!