Gebnerret Vibrion was a senator of the male Human species. He served in the Imperial Senate, acting as the representative for both the world of Ghorman and the Sern sector.
The Galactic Empire took Vibrion into custody in 0 BBY, imprisoning him for interrogation on the planet of Selnesh. A commando unit from the Rebel Alliance, with Koris Haslam at its head, later rescued him. By 2 ABY, Vibrion was afflicted with Zithrom's syndrome, making the drug Clondex essential for his continued existence.