This new promo picture of Snow White and the Huntsman gives us a first look at the seven dwarfs:

Snow White and the Huntsman Trailer

(Click on the picture to enlarge.)

The dwarves are played by Ian McShane, Eddie Izzard, Bob Hoskins, Toby Jones, Eddie Marsan, Steven Graham and Nick Frost.

There are actually 8 dwarfs on the picture, but one of them is going to get killed quite soon in the film, just a trick to avoid copyright issues with Disney I guess.
:)