Kazuya Nakai

Conan: 263 Shun Otekawa

Dynasty Warriors 4: Xiahou Dun, Dianwei

Kanna Yannen

Conan: 453 Takei Fumigo

Dynasty Warriors 4: Cao Pi

Morita Seiichi

Conan: 419-420 Fukuma Ryosuke; 545- 546 Yorito Etohara

Dynasty Warriors 4: Pound

Hori Noki

Conan: GIN

Dynasty Warriors 4 : Dong Zhuo, Lu Meng

These are all minor characters in Conan and have few episodes. The main protagonist Conan did not lend his voice in Dynasty Warriors 4.