Cassidy Freeman stars as Tess Mercer on Smallville.  While Lex Luthor is away, Tess is in control of his company and runs it aggressively.  We think Lois Lane put it best when she said, "Tess Mercer is a pit bull in Prada."

Tess Mercer Quotes

Tess: Fix the situation, Stuart. Or I'll have you terminated.
Stuart: Okay, By terminated, though, you mean fired, right? Right?

Lois: I just came to tell you that I'm not leaving the Daily Planet.
Tess: You were never leaving, Lois. I fired you.
Lois: Well, I'm not going to get into the whole "she said, she said" thing with you.

Smallville Quotes

I'm about as real as it gets.

Chloe

Clark: My father says you learn more about yourself when you lose.
Lex: What'd you learn?
Clark: That I'm not destined to be a politician. You need two different personalities.
Lex: You don't need to be an elected official to change the world, Clark.
Clark: Have you ever thought about getting into politics?
Lex: Someday I'd like to be president.