The dwarves are played in the film by actors such as Ian McShane, Ray Winstone and Nick Frost, who have been 'shrunk' for the screen using special effects.
Following a statement from the organisation Little People of America suggesting that "little people" should have been cast in the roles, Davis has expressed his support for that view.
Speaking to E! Online, Davis said: "Considering the vast experience of many short actors working in the film industry today, I think it inexcusable that, in casting for Snow White and the Huntsman, producers did not utilise this pool of talent.
"My colleague Peter Dinklage won an Emmy for his performance in Game of Thrones, proving that short actors need roles that will not only challenge them, but allow them to express themselves as actors in their own right.
"It is not acceptable to 'black up' as a white actor, so why should it be acceptable to 'shrink' an actor to play a dwarf?"
Universal Pictures, the studio behind the movie, has not commented on the issue.
Watch a video of some of the film's dwarf actors trying to name Disney's famous seven for Digital Spy below: