Host

The Host's role depends on the game mode.

Classic Mode
In Classic Mode the Host is simply the person who starts the game when the desired number of players has been reached.

Custom Mode
In Custom Mode the Host has the task of picking which roles will be used in the game. They may pick any 15 of the 29 roles or they may pick a combination of random roles. Sometimes there are a number of people dissatisfied with the roles the Host has picked. In that case the command "/repick" may be used. If enough people choose to use the command the Host will be randomly repicked and, to the hopes of the mob, do as the majority wishes.
 * It should be noted that groups of friends do have the ability to abuse the /repick feature so that one of their friends will get the Host and play the game they wish. But this requires several friends, so the Host is not again repicked.