Viewers may recognize Kyle Red Silverstein from his early work on "Grey's Anatomy." He played Ethan Dawson, a 10-year-old boy whose parents were patients at Grey Sloan Memorial Hospital after a car crash. Silverstein first appeared in Season 9, Episode 19, "Can't Fight This Feeling," and stuck around for a few episodes. As he waited for his parents to recover, Ethan formed a bond with Owen (Kevin McKidd), who protected him from the social worker hired to watch over him.

Neither of Ethan's parents woke up after their surgeries, prompting Owen to extend his care of the kid. When his grandmother finally arrived in Seattle to care for Ethan, his mom had a seizure, resulting in her death. Owen continued to distract Ethan from worrying about his dad's coma, hanging out, and playing soccer with the kid. Owen nearly adopts Ethan, but his father finally wakes up, and they leave the hospital together.

Although it never happened, Ethan would have lived a happy life with Owen and Cristina (Sandra Oh), and Silverstein knows it. In 2019, the actor expressed his love for McKidd and Oh, saying, "Both @TheRealKMcKidd and @IamSandraOh were fantastic actors to work with. I learned so much ... mostly, how to be kind and humble."