Baldwin will play a former detective who is kicked off the police force and forms a team of fellow dirty cops to launch a crime wave. The character will go after Grace Park's Kono and clash with Tom Sizemore's character, the head of Internal Affairs and ex-partner to Baldwin's dirty cop.
Look for Baldwin, who recently popped up on 'Parenthood' and 'Gossip Girl,' to appear in multiple episodes, starting with the third episode of Season 2.
CBS has released the first photos of 'Five-0' Season 2 featuring Alex O'Loughlin, Scott Caan and new cast addition Lauren German doing some horseback investigation. Check out the gallery below.
'Hawaii Five-0' returns Mon., Sept. 19 at 10PM ET.
Gallery: 'Hawaii Five-0' Season 2 First Look