Season: 1
Episode: 9
Original airdate: April 16, 2017
Written by: Michael S. Chernuchin
Allison Intrieri
Directed by: Alex Zakrzewski
Episode chronology
Previous episode: Lily's Law
Next episode: Drill

Comma is the ninth episode of the first season of Chicago Justice.


When Abigail Chapman returns from Spain after being acquitted for murdering her boyfriend while studying abroad, she finds herself the prime suspect in another murder case involving a young college student. During the trial of the real killer, the Second Amendment is put to the test.


Main Cast

Guest Stars


  • Peter DeFaria as Officer Tackett
  • Brocki Murphy as Judge Tammy Windham
  • Dina Dicostanzo as Francis Harrison
  • Will Lidke as Todd Mitchell
  • Alejandro Ortiz as Paul Sanchez
  • Jack Decesare as Brad
  • Karen Isabel Rodriguez as Natalie
  • Cera Naccarato as Stacy Boyd
  • Kevin Sciretta as Cristo
  • Kyra Jones as Margo Tillerman
  • Sam Walt Jones as Eric
  • John Fenner Mays as Beefy Dude
  • Julie Dutchak as Clerk
  • Madelyn Loehr as Kennedy Malloy


  • Dick Wolf as Creator
  • Derek Haas as Developer
  • Michael Brandt as Developer
  • Matt Olmstead as Developer
  • Dick Wolf as Executive Producer
  • Michael S. Chernuchin as Executive Producer
  • Matt Olmstead as Executive Producer
  • Derek Haas as Executive Producer
  • Michael Brandt as Executive Producer
  • Arthur W. Forney as Executive Producer
  • Peter Jankowski as Executive Producer
  • Donald Petrie as Co-Executive Producer
  • Richard Sweren as Co-Executive Producer
  • Bill Chais as Co-Executive Producer
  • Lawrence Kaplow as Co-Executive Producer
  • Carla Corwin as Producer
  • Jonathan Strauss as Co-Producer
  • William N. Fordes as Consulting Producer
  • Peter Lauritson as Associate Producer
  • Lisa Wiegand as Director Of Photography
  • Dan Clancy as Production Designer
  • Micky Blythe as Editor
  • Atli Örvarsson as Music
  • Jonathan Strauss as Casting
  • Philip Huffman as Casting
  • Marisa Ross as Casting
  • Christal Karge as Casting
  • Allison Intrieri as Executive Story Editor
  • April Fitzsimmons as Story Editor

Background information and Notes

Chicago Justice episodes
Episodes FakeUncertainty PrincipleSee SomethingJudge NotFriendly FireDead MeatDouble HelixLily's LawCommaDrillAQDFool Me TwiceTycoon