 Camille Mitchell appears as Sheriff Nancy Adams in twenty @-@ two episodes of Smallville , spanning the course of four seasons . Sheriff Adams makes her first appearance in the season two episode " Precipice " , when she arrests Clark for getting into a fight with another patron of the Talon coffee shop . In the season five episode " Lockdown " , Adams is killed by two rogue police officers looking for the black , alien ship which landed during the second meteor shower . Mitchell makes a guest appearance as Nancy Adams in season seven 's " Apocalypse " . In this episode , Clark is taken to an alternate reality where Adams , an agent for the Department of Domestic Security , is providing Lois with inside information on President Lex Luthor 's operations . 
