Duff is a fictional character portrayed by Ken Bradley in the TV series Chicago P.D..
They appear in 2 episodes out of a total of 221 aired so far
Episodes2
Disco Bob
episode S2.E12 january 2015Complicated clues surround the murder of a mother and her daughter. While, Lindsay prepares for an undercover investigation in Bolivia, and it dawns on Burgess and Roman that they need to put the past behind them.The Radical Truth
episode S8.E10 march 2021Ruzek's father, Bob, goes missing and the precinct has to find him before it's too late.
- Disco Bob
- The Radical Truth