who the hell is this?

"it" doesnt exist in member's database, and the name cant be clicked on to show profile?

just curious? Could it be some agent software by google?

It's just Google's bot doing its crawling. Nothing unusual about that as it crawls relatively often.

http://en.wikipedia.org/wiki/Googlebot

Wow I learnt something new today! Do we have other Search Engine bots crawling around here?

The forum software treats accesses by search engine bots, identified from their User-Agent, differently. They are served the search engine-friendly lo-fi version of the page, and their sessions show up in the active users list as a bot. If they aren't recognized, they are considered to be a regular guest session.

There is Yahoo.com as well

say hi to 3 of them

google is a not bot, normal member