In the Babylon 5 universe, the most important figure in Minbari mythology. Supposedly "a Minbari not born of Minbari," he brought assistance to the Minbari to help them defeat the Shadows, then organized the Grey Council and the Anla'shok. He made many prophecies about the future as well.

Valen was really Jeffrey Sinclair, who traveled back in time with the Babylon 4 space station and entered a chrysalis to make himself Minbari in appearance.