
Mamoru Sasaki was a Japanese screenwriter for film and television. He frequently collaborated with Japanese New Wave filmmakers like Nagisa Oshima and Masao Adachi. He was also a prolific writer for Japanese tokusatsu shows with Akio Jissoji. Not to be confused with the Japanese animator with the same name.
Shinsengumi 2000
Writer
The Man Who Wanted to Be Ultraman 1993
Writer
Heidi: Girl of the Alps: Mt. Alm 1993
Screenplay
Ultra Q The Movie: Legend of the Stars 1990
Screenplay
The Men Who Made Ultraman 1989
Writer
Golf Before Dawn 1987
Writer
Undersea Encounter 1981
Screenplay
Daughter of Time 1980
Screenplay
The Night of Martial Law 1980
Screenplay
Akio Jissoji's Ultraman 1979
Writer
The Story of Heidi 1979
Writer
Heidi in the City 1977
Writer
Eros Eterna 1977
Screenplay
They Were Eleven 1977
Screenplay
Huckleberry Finn 1976
Screenplay
Kôkôsei burai hikae 1972
Screenplay
Dear Summer Sister 1972
Writer
Kaihei shi-gō seito 1971
Screenplay
The Ceremony 1971
Screenplay
The Man Who Left His Will on Film 1970
Screenplay
Japan's No. 1 Disconnected Man 1969
Writer
I Want to Buy Kyoto 1969
Screenplay
It's The Drifters! All Star Attack 1969
Screenplay
Diary of a Shinjuku Thief 1969
Writer
Japan's No. 1 Traitor 1968
Writer
Horror Telephone 1968
Screenplay
Lullaby of Death 1968
Screenplay
Three Resurrected Drunkards 1968
Writer
Death by Hanging 1968
Screenplay
Japanese Summer: Double Suicide 1967
Writer
Sing a Song of Sex 1967
Writer
Band of Ninja 1967
Screenplay
Discovery of Image – The Era of Toshio Matsumoto 2017
Actor
Techno Police 21C 1982
Script Supervisor
A.K.A. Serial Killer 1975
Executive Producer
Credits from TMDB.