Capcom has just confirmed that the demo for Dragon's Dogma will be available in worldwide on Xbox LIVE and in North America PSN on April 24th and the European PSN on April 25th.
The demo will feature your party of three Pawns as well as two classes: a melee specialist Fighter who must fight the deadly Chimerain through underground tunnels before the events of the main game, and the "swift and nimble" Strider who can use the bow and arrow to "defeat the mighty Griffin in the open plains surrounding the capital of Gransys".
You can design your playable character and main Pawn with the demo and then export these characters into the full game later, when Dragon's Dogma releases on Xbox 360 and PS3 in North America on May 22 and Europe on May 25.