Twilight drakes and dragons have been seen opening portals to this realm.
- During the Halion encounter in the Ruby Sanctum raid, players are transferred to the Realm of Twilight to fight Halion.
- During the Valiona and Theralion encounter in the Bastion of Twilight raid, players can be pulled into the Twilight Realm. It is populated by Twilight Sentries.
- During the Ultraxion encounter in the Dragon Soul raid, he pulls players into the Twilight Realm, where they are susceptible to his Twilight attacks.
There are a number of Old God related realms: Dread Expanse, Realm of Y'Shaarj, Za'qul's Fear realm and Delirium realm, and Ny'alotha, the locations inside of the minds of Yogg-Saron and N'Zoth and the Void realm all of which could have some relation to the Twilight Realm or one another in some way.