Grey's Anatomy alum T.R. Knight joins current cast for PaleyFest

14 seasons after T.R. Knight left 'Grey's Anatomy', the actor joins the current cast for PaleyFest, moderating a panel with his former costars Chandra Wilson and James Pickens Jr. and the new cast.

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Grey's Anatomy alum T.R. Knight joins current cast for PaleyFest 2023: Exclusive