The cast features natural diversity reflective of a major urban police department, including Black officers like Kevin Atwater (LaRoyce Hawkins) and recurring roles by Mykelti Williamson, without any evidence of race-swapping, gender-swapping, or forced DEI casting changes. A few episodes lightly touch on contemporary issues: the premiere 'Reform' involves police accountability amid a gang drive-by killing innocent Black children; 'Anthem' features a murder at an anti-police brutality rally involving an African-American teen; and 'Breaking Point' deals with the killing of a Black alderman revitalizing a troubled neighborhood.

These are isolated storylines amid 22 episodes centered on gang wars, corruption, bombings, and personal cop arcs, presented without heavy-handed lecturing or systemic critiques that prioritize messaging over plot. Showrunner Rick Eid emphasized adapting to a 'reform era' in interviews, but without activist intent or overt social justice preaching.

Audience reception was overwhelmingly positive, with Season 5 achieving the highest ratings in One Chicago history and no notable backlash labeling it 'woke' or complaining of ideological intrusions—unlike later seasons. This restraint allows the show to deliver gripping, apolitical thrills unmarred by identity politics.