Wikipedia
Raguel (also Raguil, Rasuil, Rufael, Raquel, Reuel, and Akrasiel) is an angel mainly of the Judaic traditions. His name's meaning is considered to be "Friend of God".
Raguel is referred to as the archangel of justice, fairness, harmony, and vengeance. In the Book of Enoch, cap. XXIII, Raguel is one of the seven angels who watch, and his function is to take vengeance on the world of the luminaries who have transgressed God's laws.
Raguel is not mentioned in the canonical writings of the Bible. In 2 Enoch, when the patriarch Enoch visited heaven as a mortal, it was Raguel who carried him to and from the mortal world, along with the angel Sariel or Samuil.
In the Council of Rome of 745, pope St. Zachary condemned the worship of non-Biblical angels, among them Raguel.
Possible historical references to a similar figure from other cultures can be found in Babylonian culture as "Rag" (some translations say Ragumu), and in Sumerian as "Rig" which means to talk or speech. Thus, these similar characters represented balance in those cultures as well.