Who played in both Cold Case and Grey's Anatomy?
Cold Case (season 1):  In 3 episodes, Justin Chambers had played Chris Lassing, Lilly's partner on the Philadelphia Homicide Squad, but left the show to star as Alex Karev in ABC's hit drama show "Grey's Anatomy". Alex Karev: Alexander "Alex" Michael Karev, M.D. is a fictional character on the ABC television series "Grey's Anatomy", portrayed by actor Justin Chambers.
i don't know