Occupation Executive Assistant
Played By Sara Canning
Status Alive

Kat was one of Tess Mercer's personal assistants, working for Tess after she took control over LuthorCorp in Autumn 2008.

Season Eight

When Lois infiltrated the Luthor Mansion dressed a French maid to look for information on her cousin Chloe, Tess found her and asked Kat and a bodyguard to escort Lois out of the building. She later brought Tess all the information that an Arctic excavation team had found on the whereabouts of Lex Luthor. She handed over a picture of Clark Kent's footprint and a briefcase containing the glowing Crystal of Knowledge.

When Tess has Clark called into her office at the Daily Planet, she asked him about Lex before he left. Kat entered and offered to have Clark followed to see if he knows anything about Lex. Tess declined, saying that she would watch Clark personally.