Vanessa is a slightly tan-skinned woman with short brown hair framing her face and hazel-brown eyes. She wears light makeup, usually consisting of pale yellow-gold eye shadow and peach lipstick. She is assumed to be between the ages of thirty and forty.
Vanessa is a kind and caring person with a lot of love in her. Unlike Mike, Vanessa had an easier time approaching the supernatural. This is shown when Vanessa learns that Bloom had saved Stella with her own magic. Vanessa love plants, something she shares in common with Flora, and was quite distraught when Mr. Bonner knocked over one of her plants.
Although a generally gentle person, she can be firm on her decisions, as show when Bloom had convinced Vanessa that Mr. Brown and Mr. Bonner are conman and tried to take over her flower shop, she immediately revoked her decision to work with them. Even when they had pressured her to stay with them she did not falter.
Vanessa also seems to enjoy teasing or messing with people. Shown when she took delight in waking up with a lie about being late for school and teasing Mike about his last remaining sanity when the Winx were living with them temporarily. Vanessa is also quite patient.
- Her name is of English origin and was created by using the name of writer Jonathan Swift's lover, Esther Vanhomrigh, "[combining] the first syllable of her last name with the initial syllable of her first."
- It was then used to name the genus of a butterfly.
- Vanessa is the first character in the series to speak.
- Rachael Lillis, Vanessa's stand-in voice for the 4Kids dub (Season 3 Episode 9 only), also voiced Headmistress Faragonda, Barbatea, Professor DuFour, Amaryl, Ortensia, Priscilla, Lucy, Professor Ediltrude, and Ninfea.
- Dubbing Brothers voice actress Stephanie Sheh also voiced Flora.
- Vanessa's voice actress also voices Aisha's Guardian of Sirenix and Eldora in the Nickelodeon dub.