Orpheus Zevon (オルフェウス・ジヴォン)
Background
Orpheus was originally born into the Zevon noble family in Britannia along with his twin sister Oldrin. However, because of the Zevon family tradition of succeeding through the female line and, in the cases of twins, removing the male child from the family, he was thrown away and adopted by a commoner family at a very young age, with little to no knowledge of his birth and family.
Soon after, however, he was taken in by the Geass Order, and was given the "Geass of Transformation" by V.V. there. Thereafter, he spent an unknown number of years within the Order, where he was forced to serve as an experimental specimen and develop his Geass. The only thing that let Orpheus endure these "hellish" days was Euria, a fellow Geass-user he met within the Order and fell in love with.
He is voiced by Tatsuhisa Suzuki in Drama CD.
(Source: Code Geass Wikia)