Deanna Troi as Terapsut.
Terapsut was an archetypical monster character from Earth horror literature and drama, an undead mummy.
History and specifics
Terapsut was an angry, immortal mummy queen figure of terror with superhuman strength. Known for being both terrible and kind, she repelled threats to her subjects violently and could employ a curse. She felt she endured longer than the Pyramids. A sculpture of her face had once been fashioned on the side of a mountain. (TNG - Holo-Ween comic: "Issue 2")
Troi as Terapsut.
In 2370, Counselor Deanna Troi assumed the role of Empress Terapsut in order to confront Redjac in the USS Enterprise-D's holodeck. The character's personality was temporarily grafted onto Troi's mind through a bio-chemical form of hypnosis to prevent her from experiencing fear. Her physical strength was heightened through the use of antigravity technology under her bandages. (TNG - Holo-Ween comics: "Issue 2", "Issue 3", "Issue 4")
- Terapsut was the Norwegian language word for therapist.