|Profession:||Head of the Detroit PD's Organized Crime and Racketeering squad|
|Cause of death:||Shot in the head by Jake Roenick|
|Played by:||Gabriel Byrne|
|Film:||Assault on Precinct 13|
A corrupt police officer, Duvall, the head of the Detroit PD Organized Crime and Racketeering squad, attacked Precinct 13 on New Year's Eve in an attempt to kill his former partner in crime Marion Bishop, but the attempt failed and eventually decided that everyone inside also had to die as they knew too much.
He is killed by Jake.