Great voice actors:
Jericho, Randy Orton, Miz, Stephanie (play Jericho's story and hear her angry voice.), MVP, Big Show, Hurricane (Has some really great stuff and great delivery), Santino (hilarious lines and acted pretty well), Jerry Lawler and Beth Pheonix.
Horrible voice actors:
Rey Mysterio, Evan Borne (EASILY the worst in the game. And he has a lot of lines in Rey's story. The man can barely read a sentence and he's excruciating to listen to), Maryse, Kofi Kingston, Jack Swagger, Ezekiel Jackson, Tiffany, Matt Hardy, Triple H (what do you have to do to get emotion out of this guy when he's not in the ring? He clearly doesn't care and dials it in 100 percent), Micheal Cole (hollow, soulless, and emotionless as ever), Eve, R-Truth (It's like he can barely even talk) and Dolph Ziggler.
People who appear backstage several times, but are notably silent in the RTWM and didn't record a single thing :
Yoshi Tatsu, Drew McIntyre, Mike Knox, and Zack Ryder