Lavender Brown
Background
Lavender Brown is a witch from house Gryffindor and student at Hogwarts School of Witchcraft and Wizardry.
During the events of Harry Potter and the Prisoner of Azkaban (2004) played by Jennifer Smith
Before their feast, Albus Dumbledore introduces the students to Professor Lupin. Dumbledore announces that Rubeus Hagrid will be teaching the Care of Magical Creatures course and Harry Potter, who is sitting next to Lavender Brown, is happy to hear the news. Dumbledore then warns the students not to get in the way of the Dementors.
During the events of Harry Potter and the Half-Blood Prince (2009) played by Jessie Cave
At George Weasley and Fred Weasley's magic novelty shop, as Harry, Hermione Granger and Ron Weasley are leaving the store, Lavender says hello to Ron. Dumbledore introduces the students to Professor Horace Slughorn and tells the students that dark forces are trying to penetrate Hogwarts. In Slughorn's potions class Lavender and Romilda Vane stare lovingly at Ron and Harry when they enter the classroom. After the Quidditch game, Hermione sees Ron kissing Lavender and leaves the room. While in his hospital bed Ron calls for Hermione in his sleep in front of Lavender.