She has fair skin, dark eyes, and dark purple lips. She has purple hair that is divided into three parts. She wears a pale blue dress that covers her neck, and has no sleeves. The dress has a purple line going down it from her neck to where the dress ends, she wears dark purple leggings, and dark boots with a heel.
Like most witches, Samantha is very prideful and can be cruel to others, which can be seen when she joins the other witches to laugh and mock Mirta after she asked why witches and fairies could not get along. She also was mean with the Winx when they needed to be a group at Cloud Tower in season 2. She's mostly only nice with other witches. When the Trix took over Cloud Tower in season 6 she is shown to be scared of them.
In "Twinning with the Witches," she is seen attending Basic Witchcraft 101. Later, she, Euphorbia, Tabitha, Endora, Lucy, and Shilly team up with the Winx to discuss ways to protect the Codex from the Trix.
The Fate of Bloom
Revenge of the Trix
Like all witches, her powers are derived from the negative aspects of magic. Samantha may know some basic, first-level spells that all witches can use, such as telekinesis, transmuting objects, and fixing minor messes. Like all witches, she can fly.