Code Geass is an anime that's loaded with compelling characters with feelings on morality, justice and war. This list is for going over the characters of the series.

Main characters:

Lelouch Lamperouge (Zero), the show's protagonist
Suzaku Kururugi
C. C.
Kallen Stadtfeld

Main villains:

Emperor Charles zi Britannia
Cornelia li Britannia
Prince Schneizel el Britannia
V. V.

Notable allies of Lelouch:

Princess Nunnally Lamperouge
Sayoko Shinozaki

Zero's teammates:

Kaname Ohgi and the Black Knights
Kyoshiro Tohdoh and the Four Holy Swords
Diethard Ried
Rakshata Chawla
Empress Kaguya Sumeragi
Empress Tianzi

Suzaku's superiors and co-workers:

Earl Lloyd Asplund (boss)
Cécile Croomy
Princess Euphemia li Britannia
Gino Weinberg
Anya Alstreim
Bismarck Waldstein

Lelouch's classmates:

Milly Ashford (the President of the Student Council)
Shirley Fenette
Nina Einstein
Rivalz Cardemonde
Arthur (school pet)

Supporting antagonists:

Jeremiah Gottwald
Villetta Nu
Gilbert Guilford
Andreas Darlton
Rolo Lamperouge
Kanon Maldini
Mao
Bartley Asprius
Prince Clovis la Britannia
Li Xingke
Alicia Lohmeyer
Luciano Bradley

Other members of the Britannian royal family:

Empress Marianne vi Britannia
Prince Odysseus eu Britannia