Inspector Marty "Junior" McCormack: a special operations officer and Hildy's brother, who transfers to Homicide from Vice.
Appearances
Murder in the First
Main cast, played by A.J. Buckley
- Episode 2x01: Twenty-Fifteen (Jun 8, 2015)
- Episode 2x02: Schizofrenzy (Jun 15, 2015)
- Episode 2x03: Blue on Blue (Jun 22, 2015)
- Episode 2x04: My Sugar Walls (Jun 29, 2015)
- Episode 2x05: The McCormack Mulligan (Jul 6, 2015)
- Episode 2x06: Oh, Mexico (Jul 13, 2015)
- Episode 2x07: State of the Union (Jul 20, 2015)
- Episode 2x08: Out of the Shadows (Jul 27, 2015)
- Episode 2x09: Bruja Blanca (Aug 3, 2015)
- Episode 2x10: Nothing But the Truth (Aug 10, 2015)
- Episode 2x11: Down Time (Aug 17, 2015)
- Episode 2x12: Number Thirty Nine (Aug 24, 2015)