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.
| Year | Image | Character | Title |
|---|---|---|---|
| 2019-2021 | 
|
Grandmother Sarah | Yakusoku no Nebārando |
| 2015-2018 | 
|
Arale Norimaki | Dragon Ball Super: Doragon bôru Sūpā |
| 2008 | 
|
Axiom Computer | WALL·E |
| 1987-1989 | 
|
Henzeru | Gurimu Meisaku Gekijô |
| 1986-1989 | 
|
Lunch (Nice) | Dragon Ball: Doragon bôru |
| 1986-1989 | 
|
Lunch (Mean) | Dragon Ball: Doragon bôru |
| 1981-1986 | 
|
Arale Norimaki | Dr. Slump Arale-chan: Dokutaa Suranpu Arale-chan |
| 1986-1987 | 
|
Scarlett | G.I. Joe: A Real American Hero |
| 1984 | 
|
Miss Piggy | The Muppets Take Manhattan |
| 1984 | 
|
Baby Piggy | The Muppets Take Manhattan |