|Real Name:||Clay Maxwell|
|Affiliations:||Chicago Police Department|
|Portrayed by:||Mykelti Williamson|
Clay Maxwell is the former partner and ex-best-friend of Captain Lou Grover. Grover suspects that Clay is responsible for the death of his wife upon discovering his year long affair.
In the episode "Umia Ka Hanu" (Hold The Breath") Lou takes Clay captive in his own home and ransacks it in order to find the evidence that he stole $250,000 from a bust they did years ago since he cannot prove Clay murdered his wife.
The only mention of Clay Maxwell in Season 7 is Episode 21 where Captain Lou Grover goes back to Chicago with his son to testify against Clay.