Koji Yamanaka

Drama Series - 1987, 16 episodes • as Government Special Investigation Office Investigator

A high school girl, Izumi Gojo, who has been found guilty of murder, falls into the sea and disappears when running away from the police. However, a mysterious group rescues her and had her undertake training to transform her into an assassin. Years later, Izumi seeks to escape the group.

Drama Series - 1990, 16 episodes • as Guard

In 1999, advanced science and technology enriched people's lives, but the damage caused when they were misused for crimes or went out of control and went out of control was also great. The Special Rescue Police Winspector (abbreviated as WSP) was established to deal with such a situation. Their purpose is not only to investigate crimes and arrest suspects but also to save the lives of those involved in crimes and disasters.

Drama Series - 1988, 16 episodes • as Professor

Yusuke, Jo, Megumi, Kenji, Gou and Rui are students at Academia but the latter three decide to turn bad and join forces with the evil army Volt. When the defectors return, their three friends are forced to combat them as Choujuu Sentai Liveman. With the help of an android ally named Colon and a few others along the way, the Liveman must save the world and their friends.

Drama Series - 2000, 16 episodes • as High Rank TDF Member

It's the 30th century and time travel is illegal. To help monitor and police time crimes, the Time Protection Department is founded. But when Don Dolnero and his nefarious gang manage to trick four new TPD cadets into allowing them travel to the 20th century, the four cadets are forced to pursue them for the sake of history. There, in a time foreign to them, the cadets enlist Tatsuya Asami, a young martial artist, to aid their mission. Together, these five youngsters become the Timerangers. And though they try to live as ordinary 20th-century citizens, the Timerangers dedicate their lives to stopping Dolnero and others that may follow in his footsteps, attempting to forever alter the proper timeline!

Movie - 1989, 2h 15m • as Air Force Staff Orline

After the previous Godzilla attack, a miniature arms race ensues to collect his cells. Concerned over Godzilla's possible return, the Japanese government uses the cells to create a new bio-weapon, ANEB (Anti-Nuclear Energy Bacteria). They seeks the aid of geneticist Genshiro Shiragami, who's experiments result in a new mutation.

Movie - 1984, 2h 15m • Main Cast Role

A boy transfers into a new high school in the big city. He gets bullied, but meets a pretty girl. He tries to win her heart, but rivals abound. Debut video release from Pantsu no ana, a subsection of "BOMB" magazine.

Movie - 1988, 2h 15m • Main Cast Role

Ryōko Itakura returns as the tough-as-nails government taxing agent. This time she must figure out a way to expose a fanatical religious cult lead by a corrupt sociopath.

Movie - 1982, 2h 15m • as Hiroshi Yamamoto

9th-graders Kazuo and Kazumi take a tumble at a temple in a small seacoast town in Japan. Through supernatural intervention, their minds and bodies are switched, and the result is a touching and hilarious coming-of-age comedy as they attempt to survive the pressures of junior high school life.

Movie - 1984, 2h 15m • as University professor

A man catches the eye of an elegant lady at a bar. She relents to his advances. In the morning he throws her out of his apartment. He will soon regret his mistake when she slowly plots revenge.

Movie - 1981, 2h 15m • as Fueji

The mysterious relationship between a breast-sick sister who lives in a warehouse and the younger brother who longs for her.

Movie - 1983, 2h 15m • Main Cast Role

Ken Ota is a Japanese-American GI. He comes to Hiroshima after WW2 looking for his big sister, but finds Keiko, a bomb victim with a keloid scar on her shoulder.

Movie - 1985, 2h 15m • as Yohei Murayama

A young woman has feelings for her older cousin but he is obsessed with blonds. When a European temptress comes for a visit his fantasies come true. But he soon finds out that she likes it really kinky.

Movie - 1983, 2h 15m • Main Cast Role

Nishimura Gosaku, an aspiring photographer who loves mountain scenery, meets a boy named Sada Ichiro one evening who asks to borrow train fare. For some reason, Ichiro follows Nishimura everywhere. When told to go home, Ichiro refuses, claiming he doesn't want to return because of his estranged parents. Reluctantly, Nishimura lets Ichiro stay the night. The next day, Nishimura takes photos of Ichiro by the Sumida River, and they part ways on good terms. Meanwhile, Ichiro's worried father, Shigeo and mother, Fujiko, desperately ask Ichiro's classmates and tutoring teachers for his whereabouts, but no one knows where he is. Suddenly, Shigeo receives a phone call demanding a ransom of 10 million yen.