Cold Case is an American police procedural crime drama television series. It ran on CBS from September 28, 2003, to May 2, 2010. The series revolved around a fictionalized Philadelphia Police Department division that specializes in investigating cold cases, usually homicides.

Justin Willman Chambers is an American actor and former model. He is best known for his role as Dr. Alex Karev in the ABC television medical drama Grey's Anatomy from 2005 to 2020. Born in Ohio, he went to Southeastern High School, South Charleston, and later studied acting at New York's HB Studio. Chambers began modeling after being approached by a modeling scout in Paris. He went on to represent fashion brands including Calvin Klein, Armani, and Dolce & Gabbana. Chambers began his acting career with a recurring role in the soap opera Another World and made his feature film debut with a supporting role in the comedy drama Liberty Heights (1999).