CW stars Ian Somerhalder, Sophia Bush, Austin Nichols on Gulf Oil Disaster: We're enraged!

somerhalder-bush-nichols.jpgLouisiana native and " Vampire Diaries" star Ian Somerhalder has been working tirelessly to promote awareness of the dire situation on the Gulf Coast since the spill two months ago. He's been keeping fans and fellow activists updated via his Twitter, @ iansomerhalder.

Recently, he's expressed frustration about the lack of industry and celebrity voices speaking out about the disaster.

" Brad Pitt and people at his level in this industry - they do amazing things for the world, all over the world," Somerhalder tells Zap2it. "But it seems obvious to me that there's a certain silence, with this particular issue, and I have my own theories why -- politically, why that might be, but I would never discuss that, because they're my thoughts. It's not my place to project that on anyone."

Somerhalder isn't alone in his quest to bring awareness and aid to the Gulf coast. A number of celebrities, including Justin Bieber, Jenny McCarthy, and Alyssa Milano participated in Larry King's special two-hour telethon " Disaster in the Gulf: How You Can Help," which raised $1.8 million for disaster relief. And this week, some of Somerhalder's fellow CW stars added their voices to the cause as well.

" One Tree Hill" star Sophia Bush has never been a fan of online social networking, but she and her co-star Austin Nichols signed up for Twitter accounts this week (@ SophiaBush and @ AUS10NICHOLS).