Margin of Error
"Don't try this shit at home." - Norman Wilson Carcetti responds to a campaign smear. Randy is accused of a serious transgression. Colvin's special class gets its first enlistees.

Cast
Dominic WestJimmy McNulty
Lance ReddickCedric Daniels
Sonja SohnKima Greggs
Wendell PierceBunk Moreland
Michael Kenneth WilliamsOmar Little
Deirdre LovejoyRhonda Pearlman
Andre RoyoBubbles
John DomanWilliam Rawls
Clarke PetersLester Freamon
Jamie HectorMarlo StanfieldThe Wire on tvt

