Person who created Diablo Universe and works in Diablo 3 development team...

[Vegass]

Does anyone know the answear to this question? I thought that main creator of Diablo Universe was David Brevik but he doesn't work with D3, so who is this person?

[marshmallow]

Chris Metzen.

[permaximum]

The creator is David Brevik. Chris Metzen was one of story designers in previous games. That's all. Also he wasn't a member of Blizzard North.

[xploziv]

The creator is David Brevik. Chris Metzen was one of story designers in previous games. That's all. Also he wasn't a member of Blizzard North.

This. But Metzen is now responsible for all the Diablo Universe Lore, including the "supervising" role on Richard A. Knaak Books.

[Wildmoon]

The idea of Diablo came from Blizzard North. Metzen was story designer.