She served as the secondary antagonist in the Season Five episode "Lockdown".
She was portrayed by Sarah Lind.
When the Black Ship crash-landed on Earth during the second meteor shower, the Smallville police force arrived and tried to detain the occupants, the Kryptonian Disciples of Zod.
Deputy Harris was among the officers that held a stand-off with the aliens in Lawson's Field. They opened fire on them but their attack was futile and the disciples killed most of them with their heat vision leaving only a few survivors in their wake, including Flynn and Harris.
After the attack, Greg Flynn tried to tell officials about the spaceship and aliens but it fell on deaf ears and the doctors tried to convince him he was delusional.
Determined to prove her husband was not insane, Harris went to great lengths to find proof of the Black Ship and discovered that Lex Luthor had it moved from the crash site. Flynn and Harris went to the Luthor Mansion and tried to tell Lex he needed to evacuate as there had been a bomb threat.
When Lex said his security team hadn't informed him, the officers drew their guns. Lex's assistant threw his suitcase at Flynn but he was quickly gunned down by him. Flynn ordered Harris to stop Lex who made a break for his security room but failed as the blast door slammed shut.
Harris dragged the assistant's body out of the room while Flynn and Lex talked through the intercom. Flynn said he would figure out a way to get Lex out of the secure room.
That night, Lana Lang was driving along and talking to Chloe when she was pulled over by the second cop, Harris, who pulled a gun out and took her to the manor. Lana denied any knowledge of the ship causing Harris to yell out in frustration if everyone in this town was stupid.
Flynn remembered her from the crash site and Lex had no choice but to come out. Lex manages to get the drop on them and shoot out the scrambler Flynn was using.
The disturbance sent out a security alarm that Sheriff Adams received and she called Harris, who reassures her that it was a false alarm. Adams was still skeptical and went to check it out. She was spotted on the security monitors and Harris went to meet her in the hallway.
Harris tried to tell Adams that everything was fine but the Sheriff scolded her for not doing a thorough search.
Adams barges past Harris and enters the study where she finds that Gregory Flynn has Lana Lang and Lex Luthor trapped in a panic room and Lex's assistant has been shot dead. Adams draws her gun on Flynn, but is then shot in the back by Harris. She looked down at her chest to see the exit wound the bullet had left before falling dead to the floor.
Lex had past out from his injuries and Lana exited the panic room. She told Flynn and Harris that she'll take them to the ship only if they get Lex medical attention. Flynn agrees and they head out.
Lana and the others arrive at the warehouse where Flynn reveals he's going to plant an explosive to draw the police and press, verifying his story.
When they get there the ship is gone but Lana manages to release some pipes and hits Harris. Greg had dropped the bomb while Lana and Harris fought with the deputy managing to beat Lana. The timer on the bomb read 34 seconds so Harris and Flynn plant the bomb and leave Lana running out of the warehouse.
Clark Kent managed to find and rescue Lana before the bomb went off. The resulting explosion destroyed the warehouse that sent Flynn and Harris flying and both were arrested by the authorities.