On last night's (incredible) season finale of Lost, viewers were introduced to the first full-length commercial for Flash Forward.

ABC is hoping this new drama fills the void of mystery Lost leaves when it goes off the air in May 2010.

With that in mind, here's your first look at a character from the upcoming series:

Played by Joseph Fiennes, Mark Benford is an FBI agent based on Los Angeles Field Office. While he has a beautiful wife and adorable daughter, Benford's life is far from perfect.

This is a man that struggles with inner demons, including an addiction to alcohol. He sobered up when little Charlie was born, but will that last? For how long can Benford fight off the darkness inside of him?

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.