Most people wouldn't even know Keita shares the same seiyuu as Leopard/Lulu unless you told them. Lulu and Leopard on the other hand sounds almost exactly the same.
bk201 said: Lulu and Ichigo on the other hand sounds almost exactly the same.
fix'd for Englishers; Firion frequently sounds that same, too. However, it took some thought after seeing some Wiki credits for me to connect Vash to the guy.