As Emperor, he wears a white robe with gold accents and a matching hat both sport a red eye motif, referencing his Geass power. Outside of Ashford, his primary casual outfit is a red jacket with a black shirt underneath and grey trousers, though he has occasionally worn other clothing. Lelouch usually wears the Ashford Academy uniform, or the Zero uniform. In spite of this, Lelouch is considerably tall, standing at least a head taller than Kallen, and apparently being slightly taller than Suzaku. Lelouch is somewhat scrawny, having little muscle, and like most characters in the series, is rather thin. Lelouch is a handsome young man with black hair and violet eyes, which he inherited from his mother.

5.3 Code Geass: Lelouch of the Rebellion R2, Lancelot & Guren, Re and Oz the Reflection.

5.1 Code Geass: Lelouch of the Rebellion.

His Japanese voice actor Jun Fukuyama also won the 'Best Actor in a Leading Role' award for his portrayal of the character at the first Seiyū Awards in 2007. He was chosen the most popular male character of 2006, 20 at Animage magazine's annual Anime Grand Prix. His English dub voice is provided by Johnny Yong Bosch with Michelle Ruff doing Lelouch's child voice. He is voiced by Jun Fukuyama, while his child self is voiced by Sayaka Ohara. He was also the leader and founder of The Black Knights and the real identity of Zero. He was the Eleventh Prince of the Holy Britannian Empire and the son of the 98th Emperor of Britannia, Charles zi Britannia. After he was exiled, he used the alias, Lelouch Lamperouge (ルルーシュ・ランペルージ, Rurūshu Ranperūji). Lelouch vi Britannia (ルルーシュ・ヴィ・ブリタニア, Rurūshu vui Buritania) is the main protagonist of Code Geass: Lelouch of the Rebellion and Code Geass: Lelouch of the Rebellion R2, and plays a supporting role in sidestories like Code Geass: Oz the Reflection and Code Geass: Lancelot & Guren.

Lelouch takes over the world