Tanasa Arano is a Dunmer commoner and a servant working at the Riverview mansion in Cheydinhal in 3E 433. She is responsible for cleaning up after the parties held by her snobbish boss and master of the mansion, Voranil.

Secretly, Tanasa is also a member and agent of the Mehrunes Dagon cult of the Mythic Dawn; when exactly she joined is unknown. She may or may not have attempted to kill the Hero during their quest for the Paradise ritual items.