Which classes can you play at launch in Diablo 4?

Diablo 4 is set to release in 2021, and Blizzard has confirmed that we get to play at least 3 different classes at release. It seems more than likely that we will get more than just these three classes though, but the other ones are likely not ready to be shown to the public at this point.

The three playable classes we know that we will get at the launch of Diablo 4 is the Barbarian, the Druid, and the Sorceress.