Galen Zovrias

Galen Zovrias aka Revan was the son of Tenebrae and Senya and the brother of Alek Squiquargesimus and Dilya Larmagné. Galen hated how his father treat them and how he belittle his sister. One day they decide to escape and they was find by the Jedi, Revan called himself by the name Galen Zovrias.

Mandalorian War.
During the invasion of the Mandalorians the council decide to not participate to the war, Galen and Alek didn't accepted the decision of the council and create the Movement Revanchist, they will recruit some Jedi Knights even Dilya for fight the mandalorians.

During the battles, Revan and Malak will get the same violence as the mandalorians, during the battle of Malachor V, Revan will fight Mandalore Ultimate and kill him before Mandalore reveal a Sith was behind all this.

After the battle of Malachor, the council didn't appreciate the destruction of the planet and all the sacrifices they made, they want judge Revan, Malak, and Dilya, but Revan and Malak will lies saying to the council they will hunt the last mandalorians for search the Sith who was behind all this.

Sith.
Revan and Malak will find Vitiate is behind all this, they will infiltrate the Sith Empire but the Emperor knew his adopted children was here. He will control Malak and Revan mind and turn them to the dark side, Vitiate will send them for attack the Republic. After some missions they will success to release themself from the control of the Emperor and find the Star Forge for create they're own Sith Empire.

During an attack against the Republic, Bastila and a Jedi group will confront Revan but Malak will betray his own brother for take his place as a Dark Lord of the Sith. Malak's ship the Leviathan will open fire on Revan's ship.

Revan will be uncouncious, he will be brainwashed by the Jedi council for use him against Malak.

Redemption.
Bastila Shan will be hunted by Malak's forces above Taris. Aboard the Endar Spire, Revan will be wake up by the attack and will be helped for escape in an escape pod with Carth Onasi. During the crash Galen will be uncouncious and he will have a vision of Bastila -