Ok, I seemed to have worked out this much from EpVII.

I'll update it as we go along.

Characters

• Luke Skywalker - Jedi Master - Mark Hamill
  Leia Organa - Title unknown - Carrie Fisher
  Han Solo - Smuggler - Harrison Ford
  Chewbacca - Smuggler - Peter Mayhew
  C-3PO - Protocol droid - Anthony Daniels
  R2-D2 - Astromech - Unknown
  Kira - Salvager - Daisy Ridley
  Unknown - Cyborg Dark Knight - Unknown
  Unknown - Knight trooper - Gwendoline Christie
  Unknown - Rogue TIE pilot - John Boyega
  Unknown - Cyborg Informant - Max Von Sydow
  Unknown - Cantina blue creature - Unknown (Rumored to be Andy Serkis)
  Unknown - Blue creature's astromech - Unknown
  Unknown - Cantina bartender - Unknown

Locations

• Desert planet - Kira's home
  Desert planet - Cantina Bar
  Desert planet - Market place
  Former Rebel outpost - Yavin IV - Massassi Temple
  Forest scene (battle)
  Skellig Castle - landing pad
  Skellig Castle - Throne room
  Ice planet

Vehicles

• TIE fighter
  Basespeeder
  Landspeeder
  Millennium Falcon
  Star Destroyer
  X-Wings

Has it been confirmed that Artoo is an astromech in EpVII?

Not sure if he is an active one :P

Gonna love seeing this list evolve.

Warwick Davis is in as someone or something. Good for him.

Nek minnit

Ewoks in EpVII !!

There is talk of a battle on Endor...

And instead of Vader taking one for Luke, Luke takes one for Vader?

JJ Wins again?! :P

Christina Chong Comments Briefly On Episode VII Filming:

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"Those in charge of the Star Wars publicity juggernaut have told Chong she has to be careful and not divulge too much about her role until the hotly awaited film is out next year but she will be working with just about everyone, from Harrison Ford to Carrie Fisher and fellow Londoner Daisy Ridley. “Unfortunately, all I can say is it was incredible to be involved. It is probably the biggest film in cinema history and to be part of that is amazing. People are very fond of it."

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According to IMDB:

Maisie Richardson-Sellers = Korr Sella

Dixie Arnold = Soldier