How many programmers and designers work on World of Warcraft?

Answer 1

You are allowed to have 50 characters per account, and ten per server. Blizzard is working to possibly increase the amount of characters per server in the upcoming expansion "Mists of Pandaria".

Answer 2

The Blizzard Entertainment research and development group comprises more than 250 designers, producers, programmers, artists, and sound engineers. Each member of the Blizzard Entertainment staff is a true game enthusiast, giving the company invaluable insight into creating products for gamers. Blizzard is the designer of World of Warcraft.

Answer 3

Although current figures are a little hard to guesstimate (being at the end of an expansion and getting ready for another one), In Wrath of the Lich King, there were approximately 5.5 million lines of code in the game, not including database entries and what not.