madara uchiha is its founder while pain (or pein in japanese) serves as the leader of akatsuki..in fact, he is madara's co-founder..madara eventually took on a disguise of tobi, giving orders to pain..but this was revealed after deidara's death..
tobi funny always anoys deidara every chance he gets any way WHO IS MADARA UCHIHA I THOUGHT ITACHI KILLED EVERY 1 OF THE UCHIHA'S EXEPT SASUKE >_< I HATE NOT NOIN THINGS >_<'