* TheDanza:
** Felicia "Snoop" Pearson
** RealLife Baltimore drug kingpin "Little Melvin" Williams plays the Deacon, whose first name is apparently "Melvin".
* HeyItsThatGuy:
** Gordon from ''Series/SesameStreet'' plays a cop in season 5.
** Plenty of cameos from Baltimore-area personalities. The Baltimore Sun office in season 5, for example, has several former Sun writers playing themselves in their old jobs.
** Many remember JD Williams (Bodie Broadus) as being Wangler from HBO's ''{{Oz}}''. At least three cops played medium to minor characters in ''{{Oz}}'', as well.
** James Ransone (Ziggy Sobotka) starred in ''GenerationKill'', another HBO show written by DavidSimon.
** [[TrueBlood Andy Bellefleur]] plays Frank Sobotka (or is that the other way around).
** [[TheHour Hector Madden]] used to work as a cop.
** The Greek will seem very familiar to fans of ''LawAndOrder''. His actor has played several roles on that show, perhaps most notably the PedophilePriest who molested Mike Logan as a child.
** Back in season one, [[TheWire Chris Partlow]] can be seen in court wearing a police uniform -- wait what?
** Before he turned to dealing heroin in Baltimore, Avon [[RememberTheTitans was a high school football player in Virginia]].
** [[Film/GoneBabyGone Beatrice McReady]] (Amy Ryan) is actually a decent mother for once, and a cop, no less. Also makes a change from her other day job in HR in [[TheOffice Scranton, PA]]
** [[GameOfThrones Littlefinger]] is another sleazy politician as Tommy Carcetti.
*** Or [[Series/LoveHate John Boy if you're Irish]].
** In a past life, Prez [[TheHudsuckerProxy invented the bendy straw]].
* WhatCouldHaveBeen:
** There was another season of ''The Wire'' planned which would have dealt with immigration and the large influx of Hispanic immigrants in Baltimore. Since none of the writers spoke Spanish nor knew enough about the immigrants that lived in Baltimore, the season was cut.
** During season 3 the idea was floated of spinning off the political subplots into a separate show called ''The Hall''. Instead the political side was folded into subsequent seasons.
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