Isis Cresswell (b. c. 2006) was a witch who attended Hogwarts School of Witchcraft and Wizardry from 2017 to 2024 and was sorted into Ravenclaw. She is the daughter of an auror Gabriel Cresswell and granddaughter of Dirk Cresswell, a muggle-born killed by Snatchers during the Second Wizarding War .
Her relationship with her parents is currently unknown.
In her first year, Isis was able to approach Albus in class during the History of Magic Literature. In the midst of pleasant talk, Isis now and then showed some interest of the son of Boy Who Lived.