It is richard.
Jugdish, why do you just state that it is Richard. Just because they look alike doesnt mean they are the same person. Like I said when he asked Ben what his name was they PURPOSELY didnt have Richard reply with Hi Ben my name is Richard, anyone that would be trying to calm a lost boy in the woods to make him feel comfortable would NORMALLY do that and he didnt. I just feel that dialog was interesting that he didnt. That and the fact that he hasnt aged a day and has this new always shaved, hair perfectly groomed, suit wearing self is such a change for someone that was a "hostile".
So we are to assume that the "hostiles" were trapped on the island, eliminated all the Dharma folks, stole there technology so that they can go off the island?