Tack is a very shy and gloomy girl, a descendant of the Grim Reaper.
She can see and speak to the dead/paranormal.

Tack is often very, very easily frightened; however, she doesn't seem to mind and even enjoys the company of ghosts and paranormal activity.
She has a very strong connection to Fluttershy from My Little Pony; her words are often soft and low, and her sentences gradually decrease in volume with every word she speaks.

Tack also has a stutter; her words are never confident when coming out.