Who is the girl in the iknowthatgirl.com ad wearing the good witch shirt?

The girl in the iknowthatgirl.com ad wearing the Good Witch shirt is likely one of the brand's models or influencers featured to promote their merchandise. Specific information about her identity may not be publicly disclosed, as many brands use various models for advertising campaigns. If you're looking for more details, you may find them on the brand's official website or social media platforms.