British actor from the movie Slumdog Millionaire and The Last Airbender, Dev Patel's teeth.

American actor from the movie Superbad and Role Models, Christopher Mintz-Plasse's teeth.

Austrian actor from the movie Inglourious Basterds and The Green Hornet, Christoph Waltz's teeth.

Andy Serkis is best known for playing Gollum in The Lord of the Rings film series.

Amy Acker has been featured on the television series Dollhouse and Happy Town.

Amanda Bynes cute slightly buck teeth.

Amanda Bynes is best known for her work on the Nickelodeon network.

Great closeup photo of Alyson Hannigan's slightly stained buck teeth.

Alyson Hannigan is known for her roll in the American Pie movie.

Alison Lohman smiling and revealing her crooked buck teeth.

Picture of Scarlett Johansson's lovely white and slightly buck teeth, photo of sizzling celebrity actress Scarlett Johansson and her teeth.

Rachel Bilson slightly buck teeth, picture of Rachel Bilson's lovely smile with semi buck teeth.

You probably know Rachel Bilson for her role as Summer Roberts on the televison drama series The O.C.

Odette Yustman is a dazzling Hollywood actress who has been featured in the movie, The Unborn and Cloverfield.

Neve Campbell is such a magnificent actress, who you might remember from the role of Sidney Prescott in the horror slasher films, Scream.

You can tell that Neve Campbell really takes great care of her teeth, however she simply has buck teeth.

No big deal, right? I mean lots of people have buck teeth, even several celebrities like Jessica Simpson and Eva Longoria have big front teeth, at least they're healthy and white.

You probably know our next actress, Naomi Watts, from the film 21 Grams and The Ring, along with a slew of other successful films.

If only her teeth were up to the standards of her choice of movie roles...

Poor Naomi Watts has a very undesirable shade of stained teeth, along with a couple of prominently buck teeth to really showcase her dingy tooth color.

To do list: Better oral hygiene.

Lily Allen is the cute English pop singer who got are attention with the catchy hit song "Smile" and has since gone on to become a worldwide success.

Lily Allen's teeth aren't absolutely dreadful by any means, however there are a few key points which are less them desirable.

For starters, her teeth seem to be extra pointy and sharp compared to the average set of teeth, in fact she appears to have 3 sets on fangs, appose to the regular 1 set.

Another thing i was quick to notice was the slight gap between her front teeth, which is really minor, and nothing compared to the teeth gap of David Letterman.

Aside from the shape and whatnot, Lily Allen's teeth look to be healthy with a nice white tint to them.

Laetitia Casta is a tantalizing gorgeous French model and actress with zero apparent beauty flaws, except for her questionable teeth.

Laetitia Casta's teeth are quite complex, they are like a combination of "Chuck E Cheese" buck and "Count Dracula" fangs.

It looks like she packs one hell of a bite!

Apart from being misshaped and downright vicious, they do appear to be very healthy white teeth.

Kirsten Dunst has had a long successful run in Hollywood, with roles in blockbuster movies like, Interview with the Vampire and the Spider-Man trilogy, and is merely 27 years old with a glaring future ahead her.

Number one on her "to do" list should certainly involve, getting her teeth fixed, for goodness sakes these teeth are shockingly crooked and those front teeth are straight outta "Alvin and the Chipmunks".

It looks to me like she decided to pass on the braces, while at a young age and is now reaping the consequences of that decision, today.

I really love and appreciate Keira Knightley as a talented actress, and all around beauty for that matter, however her teeth are little below par, for celebrity standards.

She has those "chipmunk" front teeth which will unfortunately land her in the "buck teeth" bin, and she is also the proud owner of a few crooked/oddly shaped teeth as well.

And finally, her off color white teeth could use another "celebrity teeth whitening" session or two.

But really, Keira your great!