Monster (モンスター , Monsutā , sometimes referred to as "Naoki Urasawa's "Monster"") is a Japanese manga series written and illustrated by Naoki Urasawa.
 It was published by Shogakukan in their "Big Comic Original" magazine between 1994 and 2001, with the chapters collected and reprinted into 18 "tankōbon" volumes.
 The story revolves around Kenzō Tenma, a Japanese surgeon living in Germany whose life enters turmoil after getting himself involved with Johan Liebert, one of his former patients who is revealed to be a dangerous psychopath.
Yawara!
 (also stylized as YAWARA!)
 is a Japanese manga series by Naoki Urasawa which ran in "Big Comic Spirits" from 1986 to 1993.
 In 1990, it received the 35th Shogakukan Manga Award for general manga.
 It was adapted in 1989 by Toho as a live action movie directed by Kazuo Yoshida, starring Yui Asaka in the main role and singing the main theme, "Neverland".
Pluto (Japanese: プルートウ , Hepburn: Purūtō ) is a Japanese manga series written and illustrated by Naoki Urasawa.
 It was serialized in Shogakukan's "Big Comic Original" magazine from 2003 to 2009, with the chapters collected into eight "tankōbon" volumes.
 The series is based on Osamu Tezuka's "Astro Boy", specifically story arc, and named after the arc's chief villain.
 Urasawa reinterprets the story as a suspenseful murder mystery starring Gesicht, a Europol robot detective trying to solve the case of a string of robot and human deaths.
 Takashi Nagasaki is credited as the series' co-author.
 Macoto Tezka, Osamu Tezuka's son, supervised the series, and Tezuka Productions is listed as having given cooperation.
Naoki Urasawa (浦沢 直樹 , Urasawa Naoki ) is a Japanese manga artist and occasional musician.
 He has been called one of the artists that changed the history of manga, and has received the Shogakukan Manga Award three times, the Tezuka Osamu Cultural Prize twice, and the Kodansha Manga Award once.
This is a List of Monster characters from the Japanese manga series written and illustrated by Naoki Urasawa and published by Shogakukan in "Big Comic Original" between 1994 and 2001.
 The chapters of "Monster" were collected and printed in 18 tankōbon volumes.
 Urasawa later wrote and illustrated the novel "Another Monster", a story detailing the events of the manga from an investigative reporter's point of view, which was published in 2002.
 The manga was adapted by Madhouse into a 74-episode anime TV series, which aired on NTV from April 2004 to September 2005.
Pineapple Army (パイナップルARMY ) is a Japanese manga series written by Kazuya Kudo and illustrated by Naoki Urasawa.
 It was originally serialized in Shogakukan's "Big Comic Original" from 1986 to 1988.
 The individual volumes were published in eight "tankōbon" by Shogakukan.
 The manga is licensed in France by Glénat, in Spain by Planeta DeAgostini Comics and in Sweden by Epix Förlag.
 In 1988, Viz Media briefly published a few chapters of "Pineapple Army" in English, but the run was unsuccessful, and canceled after ten issues were released.
Mami Koyama (小山 茉美 , Koyama Mami , born January 17, 1955 in Nishio, Aichi, Japan) is a Japanese voice actress affiliated with Aoni Production.
 Her best-known voice roles include Ophiuchus Shaina in "Saint Seiya", Arale Norimaki in "Dr. Slump", Minky Momo in "Magical Princess Minky Momo", Lunch in "Dragon Ball", Korosuke in "Kiteretsu Daihyakka" and Ryoko Mendou in "Urusei Yatsura".
 Some of her notable roles in the 1990s and 2000s anime include Balalaika in "Black Lagoon", Talia Gladys in "Gundam Seed", Eva Heinemann in "Monster", and Yōko Itoigawa in "Hyōka".
 In feature films, she voiced Kei in "Akira", and the adult Chiyoko Fujiwara in "Millennium Actress".
20th Century Boys (20世紀少年 , Nijūseiki Shōnen ) is a Japanese manga series written and illustrated by Naoki Urasawa.
 It was originally serialized in "Big Comic Spirits" from 1999 to 2006, with the 249 chapters published into 22 "tankōbon" volumes by Shogakukan.
 In January 2007, a sixteen chapter continuation titled 21st Century Boys (21世紀少年 , Nijūisseiki Shōnen ) ran until July, and was gathered into two "tankōbon".
 It tells the story of Kenji Endō and his friends, who notice a cult-leader known only as "Friend" is out to destroy the world, and it has something to do with their childhood memories.
 The series makes many references to a number of manga and anime from the 1960s-1970s, as well as to classic rock music, its title being taken from T.Rex's song "20th Century Boy".
Billy Bat (ビリーバット , Birī Batto ) is a Japanese seinen thriller manga series written by Naoki Urasawa and Takashi Nagasaki and illustrated by Urasawa.
 The series was announced in issue 45 of the Japanese manga anthology "Weekly Morning" in 2008, and its first chapter was released in the next issue of "Morning" on October 16, 2008 and the last chapter on August 18th, 2016.
 The series was compiled into 20 volumes by Kodansha with the final volume published on September 23, 2016.
Appleseed (Japanese: アップルシード , Hepburn: Appurushīdo ) is a 2004 Japanese computer animated anime science fiction action film directed by Shinji Aramaki and based on the "Appleseed" manga created by Masamune Shirow.
 It features the voice acting of Ai Kobayashi, Jūrōta Kosugi, Mami Koyama, Yuki Matsuoka, and Toshiyuki Morikawa.
 The film tells the story of Deunan Knute, a former soldier, who searches for data that can restore the reproductive capabilities of bioroids, a race of genetically engineered clones.
 Although it shares characters and settings with the original manga, this film's storyline is a re-interpretation, not a true adaptation.
 This "Appleseed" film should not be confused with the 1988 OVA which was also inspired by the manga.
 "Appleseed" received a theatrical release on April 17, 2004.

Question: Which Japanese manga series written and illustrated by Naoki Urasawa, when turned into an anima, did Mami Koyama  have a voice acting part in?
Answer: Monster