[s15e13] I Walk The Line Guide

: The visual of the "Chiefs' Wall" including Derek, which many fans found heartbreakingly nostalgic.

: Teddy and Koracick treat a patient in a complex platonic/romantic dynamic. This leads Teddy to realize she and Owen can—and should—remain "besties," clearing the path for her budding romance with Tom Koracick. [S15E13] I Walk The Line

: Jennifer Grey ( Dirty Dancing ) as Carol Dickinson and Billy Boyd ( Lord of the Rings ) as Seamus. : The visual of the "Chiefs' Wall" including