O'Connor, Jr. Michael T.
O'Neil Gerard
Ogata Sumikazu
Ogi Kozo
Oh Jae Hwan
Oh Joo-Seok
Ohi Tamio
Ohshita Kazuhito
Okamoto Shintarou
Okano Taku
Olding Tim
Onami Kazuto
Ono Toshikazu
Oomen Joris Jan Cornelis
Oosako Katsuhisa
Ootani Yuji
Oprosky Joanna
Oshita Kazuhito
Osoegawa Misako
Oya Hirohisa