C.C

Full name	C.C
Aliases	Gray Witch
Date of Birth	Unknown
Height	168 cm (5'6")
Blood Type	Unknown
Voiced by	Yukana

C.C. (シー・ツー Shī Tsū, pronounced C2) (しーつー), is the tritagonist of Code Geass: Lelouch of the Rebellion. Her seiyu is Yukana while she is voiced by Kate Higgins in the English dub. C.C. is not her real name; she involuntarily reveals her real name to Lelouch in her sleep.

Appearance

C.C. is a girl with long, almost waist-length light green hair and golden eyes. She is of average height, being approximately as tall as Kallen. She has a scar under her left breast that resembles a Geass sigil.

C.C.'s outfits are both plentiful and varied. She is seen wearing a wide assortment of different clothes, often dependent on the situation or the time period. She often wears Lelouch's own clothes, including his Zero costume whenever Lelouch required a decoy.

Personality

 

C.C. expresses little emotion throughout most of each season and behaves apathetically towards most. However, she does express some emotions later in the first season and at several points in the second when in the presence of Lelouch. When she locks her memories away, she regresses to how she was hundreds of years ago, fearful and open. However, when she regains her memories, her personality reverts back.

C.C. is immortal, healing from any kind of wound (implied to include beheading) with enough time. She also doesn't age. Apart from her immortality, C.C. has the ability to bestow people with the power of Geass, which manifests differently in each person but generally carries the ability to affect the minds of those it is used on in some way. A Geass sigil appears on her forehead whenever she manifests this power, and she has a similar scar on her left breast. Her powers caught the interest of Britannia, who imprisoned her for experimentation purposes. 

Source : codegeass.wikia