Thanos Gorecki

Thanos Gorecki is one of the ten Attendees at  The Sexy Brutale  which Lafcadio must save from death.

Death
Just prior to midnight, Thanos and Aurum Runes convene in front of a large monument adjacent to the Heaven and Hell Stair area. At the appointed time, the monument opens, revealing a hidden elevator. Aurum has adjusted the hidden switches around the mansion per Thanos' directions, and is hesitant about boarding the elevator, but Thanos is confident of the contraption's ability to work properly.

Without Lafcadio's intervention, the monument-slash-elevator-slash-furnace bursts into flames due to the furnace not being properly disconnected by the switches. Aurum is able to crawl out of the elevator before it descends, but perishes on the floor in front of the monument after being badly burned.

Thanos is not so fortunate, and rides the elevator down to the basement, where his charred corpse is summarily ejected at the bottom of the elevator shaft minutes before the day ends.

Mask Power
Thanos' Mask Power is Architect's Insight. With this, Lafcadio is able to learn a great deal of information about certain rooms or locations when Thanos' mask icon appears on the screen. This is arguably of limited use due to being acquired in the late stages of the game, but provides fascinating lore and story points for those looking for even more information about the Sexy Brutale and its inhabitants.