Steamboy

Keiko Aizawa

Ray's Mother (voice)

Aiko Hibi

Thomas (voice)

Manami Konishi

Scarlett O'Hara St. Jones (voice)

Anne Suzuki

James Ray Steam (voice)

Sanae Kobayashi

Emma (voice)

Katsuo Nakamura

Dr. Lloyd Steam (voice)

Masane Tsukayama

Dr. Edward 'Eddy' Steam (voice)

Satoru Sato

Archibald Simon (voice)

Susumu Terajima

Alfred Smith (voice)

Kiyoshi Kodama

Robert Stephenson (voice)

Tetsu Inada

Jason (voice)

Ikki Sawamura

David (voice)

Osamu Saka

The Admiral (voice)