forum was founded by Satoshi and Sirius , Satoshi left as we all know , Sirius is a staff member but not that active (he controls bitcoin.org domain too I guess), forum is now controlled by theymos ( https://bitcointalk.org/index.php?action=profile;u=35) as you can see from his UID (35)  he was one of the first members and there is also BadBear which is an administrator as well. and no , Bitcoin foundation have no control over the forums.