Carpenter filed for divorce from the 41 year old in December, 2010, and their separation was officially finalised last year (11).
Now the actor is moving on from the broken marriage with writer and book editor Morgan MacGregor, according to Us Weekly magazine.
A source says, "They've been seeing each other for a while. He's very happy."
The couple went public with its romance for the first time at the 2012 Emmy Awards in Los Angeles on Sunday (23Sep12) when they walked the red carpet holding hands.