If you block someone on facebook, can they still see your profile?

[.:=RM=:.]

I want to block this guy from my facebook who added me from twitter and the messages he's sending me and stuff are starting to make me uncomfortable now.

If I block him, will he be able to see my profile still? If he goes on to my friends' "friends list" (because he's friends with one of them too) will he be able to see me on their list? Or will I be 100%, totally invisible?

Please help! Thanks!

[Musicis]

no its impossible for him to see your profile until you unblock him

[Melvin]

No, they can't.

[Bethan]

Nope if you block him he won't be able see anything not even when you comment on your friends wall.

[Cheryl]

No, when they try to open the link of ur profile, a page will appear saying content is not found, and even if you comment on something they wont see the comment,its like you are invisible