So the list continues to expand, or the full list was never made public. Rosenbaum is no stranger to the comics world, playing Lex Luthor to Tom Welling's Clark Kent on SMALLVILLE. He also voiced Flash for the JUSTICE LEAGUE, JUSTICE LEAGUE UNITED animated series and films.
GUARDIANS OF THE GALAXY (which is scheduled for a August 1, 2014 release) will be directed by James Gunn. The screenplay is written by Gunn, Nicole Perlman, and Chris McCoy.