Overexpose (Verb) To expose too long or too much. 

Forbes magazine is reporting results from an L.A. based market research firm which found, unsurprisingly, that Paris Hilton is the most overexposed celebrity in America, followed by Britney Spears, Lindsay Lohan, the Olson twins, and then Pamela Anderson.

But, instead of featuring images of already overexposed celebrities, today I'm featuring five underexposed actresses (only one, perhaps, who has risen to the level of "celebrity.") These are women you may or may not know, but you definitely should: 1) Olivia Thirlby (above), from Juno, Snow Angels, and The Wackness; and (from left to right) 2) Patricia Clarkson from Married Life, Good Night and Good Luck; 3) Amanda Seyfried from "Veronica Mars," "Big Love," and the forthcoming Diablo Cody film, Jennifer's Body; 4) Alison Lohman, from Things We Lost in the Fire, Matchstick Men, and the forthcoming Sam Raimi flick, Drag Me to Hell; and finally, 5) Kelli Garner, from Lars and the Real Girl and  Thumbsucker.