The Walking Dead Season 3 - New Character - Harold? Dale's Replacement?

The Walking Dead's third season doesn't air until the fall, but some spoilers about what's coming up have been released to tease fans. According to E! Online, the group is going to run into Harold, who "is 'a studious and fastidious man' trying to carve out a postapocalyptic niche for himself. Sounds like he could be a model 'prisoner'!"  I hope that this "Harold" is a big edition to the T.V show as we have seen characters added to the show that are not fearured in the comic become quite big parts for example TDog ( I know he never gets any lines but I still love him!) It will be interesting to see where they go with this character if these rumours are true.