Marvel Studios is likely to reveal the entire cast of Guardians of Galaxy in a big Hall H extravaganza next week, but the movie identities of a trio of Guardians characters has reportedly been leaked to a Website in England where director James Gunn is currently filming the Marvel-based space opera that is slated to debut in theaters in a little more than a year on August 1, 2014.
According to Den of Geek, Benicio del Toro, who has signed a multi-film deal with Marvel Studios (see "Benicio del Toro in 'Guardians'"), will indeed play The Collector, one of the oldest and most potent characters in the Marvel Universe.
Lee Pace will take on the role of the Kree warrior Ronan the Accuser, who began his stint in the Marvel U as a villain, but has also demonstrated an heroic side to his character.  Doctor Who alumnus Karen Gillan will, according to Den of Geek, will portray the nasty space pirate Nebula.
Guardians of the Galaxy also features Chris Pratt, Zoe Saldana, Michael Rooker, David Bautista, Glenn Close, and John C. Reilly, who will play the agent Coulson-like role of Rhomann Dey (see "John C. Reilly in 'Guardians'").