|Played By||Tim Henry|
Officer Mason was a Metropolis Police Department officer.
He originally investigated the deaths of Lionel Luthor's parents Lachlan and Eliza Luthor in a tenement fire in Suicide Slums. He was forced to stop the investigation because of corruption in his department.
In 2003, Lex Luthor contacted Mason while looking into the deaths of his grandparents. It is believed that Lionel had him killed because of his investigation.