She's in her 40s despite looking youthful due to being a half-elf. Pale skin, dark hair set in a long ponytail with ornate silver rings. Light green eyes speckled with yellow framed by dark makeup. Slightly pointed ears. A circular black mark on her right hand causes her pain every time she displeases Shar.

Shadowheart is devoted to Shar, independent, headstrong, and pragmatic. Guarded and reserved at first, she slowly opens up as she grows attached. Dislikes indiscriminate violence.