Full cast of The Big O

Mitsuru Miyamoto

Roger Smith (voice)

26 episodes

Akiko Yajima

R. Dorothy Wayneright (voice)

26 episodes

Emi Shinohara

Angel (voice)

26 episodes

Gorō Naya

Gordon Rosewater (voice)

26 episodes

Katsunosuke Hori

Michael Seebach (voice)

26 episodes

Motomu Kiyokawa

Norman Burg (voice)

26 episodes

Shinpachi Tsuji

Big Ear (voice)

26 episodes

Unsho Ishizuka

Alex Rosewater (voice)

26 episodes

Sayuri

Vera Ronstadt (voice)

26 episodes

Tessyo Genda

Dan Dastun (voice)

26 episodes