Oliver Leek

"Now I want you to feel what it's like to be on the wrong end of your grand disdain. A little man looking up at the big boss. [chuckles]" - Oliver Leek

"Security! I want Security in here NOW!"- James Lester

''"They're all gone James, either on Cutter's wild goose chase or... dead. Now, I'm gonna hunt you!" ''- Oliver Leek

Oliver Leek was James Lester's former right-hand man at the Anomaly Research Centre (ARC) and the primary antagonist in Season 2 of Primeval.

Though throughout the majority of the series, he puts on a shy and slightly dim-witted persona, he was in fact an exceptionally intelligent and manipulative sociopath with plans to rule the world using an army of creatures extracted from various time zones throughout Earth's history.

Allegiance with Helen Cutter

Having been overlooked his entire life, and intense desire for power over others overtook Oliver, who set up a partnership with Helen and several mercenaries (including one of her Cleaner clones) in which they would send mercenaries across the temporal anomalies to steal creatures which they would mind-control using future technology (neural clamps) into creating a semi-chaotic new world order with Oliver Leek being the overall ruler of humanity.

He demonstrated his betrayal when he set a future predator on his boss James Lester in a (failed) attempt to kill him, though it did succeed in killing all other staff at work at the ARC that evening under his orders, and he implanted a bomb into the ARC.

Having kidnapped Nick Cutter, Jenny Lewis, Connor, Abbey and Caroline and imprisoned them in his compound, Leek took a sadistic joy in watching Caroline (who he had been paying throughout the series to provide him with information on Connor's work) and Abbey fighting, and refused to stop the violence because he enjoyed the entertainment.

Death

After he accientally downloaded the virus that Connor had implanted onto his laptop, Leek inadvertantly released all of the creatures into the compound.

Lester sent all of the ARC's soldiers after Leek when his compound was breached, so he took Nick Cutter with him as a bargaining chip, and video called Lester (after Nick had killed one of the future predators by pulling the neural clamp out of its head), threatening to set his army of future predators on Nick if he was not allowed to go free. However, Nick short-circuited the neural clamp in the predator's head, causing it todisrupt the clamps in all of the other predators. As a result, all of the future predators in the compund attacked Leek out of both vengeance and hunger, and tore him to pieces while he screamed in agony.