This is an open set up, so all the roles that could potentially exist can be found below.
Setup at a glance: 4 Mafia, 1 SK, 0-2 SCops, 0-2 Doctors, 0-1 Vig, 0/2 Masons, 8-15 Townies
Presence Randomization: 33% chance of presence for 0, 1, or 2 cops, same for doctors, 50% for vig, 50% for mason pair, and Vanilla Townies fills in whatever number is left for a total of 20 players, including 4 mafia and 1 SK.
You wake up from your nightmares, which were probably caused by fear of the lurking mafia. However, you find it remarkable that nothing seemed different. The group of citizens carefully searched the town and found no dead bodies, and upon counting their own numbers realized that indeed all were alive and well.