V.V.

V.V. (ヴイ・ツー, Vui Tsū can be pronounced V2) is an ally of the Britannia, most often seen accompanying  the Charles Di Britannia and gave him his Geass. He is known to have given many people in the Empire (possibly including Rolo) the power of Geass. As with C.C, he seems virtually immortal, both unable to be harmed with physical damage and un-aging, appearing as a young boy throughout the show.

Prior the Invasion of Japan
V.V knew the Emperor Charles Di Britannia long before the Invasion of Japan (and the start of the main storyline) as a flashback in episode 14 shows them discussing their philosophies and plans for the future. He also seems to have known Lelouch Vi Britannia's mother Marianne Vi Britannia and C.C. In exchange for his Geass, Charles agreed to destroy "The Gods".

Invasion of Japan and the Black Rebellion
During the time of both the invasion and Black Rebellion, V.V remained behind the scenes hiding among the highest ranks of the Britannian Royal Family. He and Charles were starting expeditions to make more Geass Research Facilities and possibly to, in turn, find Though Elevators like the one found in the desert during the Black Knights' second uprising. his only known appearance was revealing himself to Suzaku Kururugi a few hours till the people of Area 11 began their rebellion. Revealing to him that Zero was responsible for Euphemia Li Britannia's murder. After that he kidnapped Nunnally Vi Britannia and once again disappeared.

Second Black Knight Uprising


V.V was more active during the Black Knights second Uprising. He was the head of a Compound "Researching" Geass. Inside this facility he gave many subjects the power of geass so that the researchers could find a way to replicate or manipulate Geass, as with Jeremiah Gottwald's Geass Canceler. However the research would stop here as shortly afterward Jeremiah  would join the Black Knights and destroy the facility. In the ensuing battle he would use the Siegfried and fight the Black Knights, however the Knight Giga Fortress would be destroyed by the Lelouch's Knightmare Frame Shinkirō. After a exchanging a few words with the disappointed Emperor he disappears again (most likely alive).