Arnold Dietrich (American) is a former, original member and leader ("Archbishop" under The Chain) of the Children of God/The Family International. He joined the group in the late 1960s. He is also a son-in-law of David Berg, having married Faith Berg in February of 1967 at Berg's request. His brother, Caleb, was also an original member of the cult.
Pseudonyms he has used include: Bishop Joshua Levi, Archbishop Josh, Big Josh, and Arny.