Age: 62 (first season), 63 (second season)

Date of Birth: August 4, 1955 a.t.b. (Leo)

Blood Type: AB

Nationality: Britannian

Height: 197 cm (6'6")

Weight: 108 kg (238 lbs)

Occupation: Emperor

Allegiance: Holy Britannian Empire

Position: 98th Emperor of Britannia

Charles Zi Britannia (シャルル・ジ・ブリタニア, Sharuru Ji Buritania), known as Charles di Britannia in the English subbed), is the 98th emperor of the Holy Britannian Empire, the father of Lelouch vi Britannia (and many others) and V.V.'s twin brother. He had a Geass power that allowed him to suppress and alter the memories of those he achieved eye contact with but lost this power in exchange for V.V.'s Code which granted him immortality. He served as the main antagonist in both of the series.

Charles is a cold and intelligent man who firmly holds views such as social Darwinism, believing that only the strongest are worthy of rising in society. His philosophy is not reserved solely for his adversaries, however, as he treated Lelouch harshly after the death of Marianne, offering no sympathy to his then-adolescent son. He is also deeply cynical, having no confidence in people's good and believing that humanity's natural course is struggle and conflict.

He has no moral scruples in how he deals with his enemies. His rise to power saw numerous political rivals and their allies killed, and even as Emperor, Britannia continued to engage in a global conflict with its adversaries. Ultimately, he cares little for the casualties of Britannian military conflicts, be they enemy combatants, innocent civilians, or even Britannian soldiers.

However, his views and ideology seem to have stemmed from his traumatic upbringing. As a child, he often witnessed his family kill each other in pursuit of the throne. Thus he naturally came to understand that without power, one cannot survive. However, he wishes for the world to be gentler; indeed, he even tells Lelouch, during their final confrontation, that the Ragnarok Connection will ensure the peaceful world that Nunnally wants.

Character Background:

First Season:

Second Season:

Geass:

Charles' Geass in the anime allowed him to alter an individual's memories at will freely, seal the Geass of others and physical senses such as sight. However, there are ways to break or weaken these seals as contact with Immortal or sheer willpower. However, the latter may have only been possible thanks to his death. He can use his power more than once on a person. Interestingly, Charles' Geass Sigils appear in both eyes, a display of his experience with Geass.

Code of Immortality:

(Source: Code Geass Wiki)