How many movies have Kenji Utsumi and Mami Koyama acted in together?

They have worked on 12 movies together! Their first movie together was Undersea Super Train: Marine Express (1979) while their highest rated movie together was The Tale of Osamu Tezuka: I'm Son-Goku (1989). They have not worked together since Yona Yona Penguin (2009). They are most known for their animation films together.

Role
Old Man (voice)
Role
Coco's Mother (voice)
Role
Bull Demon King (voice)
Role
Lula / Kyoko Okamoto (voice)
Role
Shenlong (voice) / Tournament Announcer (voice)
Role
Arale Norimaki/Lunch (voice)
Role
Salamander (voice)
Role
Luna (voice)
Role
Senbei Norimaki (voice)
Role
Arale Norimaki (voice)
Role
Dracula (voice)
Role
Rachel van Helsing (voice)
Role
Acetylene Lamp (voice)
Role
Chocola as "Milly" (voice)