EXCLUSIVE: 'Shadowhunters' Star Katherine McNamara Teases Sarah Hyland's 'Perfect' Season 2 Role! Video:

ET sat down with the 21-year-old actress to get the inside scoop on Sarah Hyland's 'super secret' guest starring role in the dark drama! 'Shadowhunters' airs Mondays at 8 p.m. on Freeform.

Published Tue, 06 Jun 2017 01:25:52 UTC

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