A Kazon-Nistrim subordinate of Seska who acts as go-between for the traitor Michael Jonas and passes on orders to sabotage Voyager.
Lorrum is a member of the Kazon-Nistrim. He appears in the second-season Voyager episodes Lifesigns and Investigations, part of the running story of a spy aboard the ship.
Crewman Jonas has been sending information to the Nistrim in secret and wants to deal with Seska directly. He usually gets Lorrum instead, who takes his reports, loses patience with his hesitation and makes it plain what will happen to him if he fails.
Through Lorrum, Jonas is told to damage the warp coils so that Voyager will have to put in at a planet where the Kazon can lay an ambush. The plot fails when Neelix's inquiries uncover Jonas, who dies in a struggle in engineering.