Lavender Brown was an interesting character. She was quirky, interesting and cool, and a lot of us wondered why Ron didn't just stay with her instead of running off with Hermione. Hermione may look more traditionally pretty, but Lavender had all the style!
It doesn't look like playing the part would have been a major problem for Jessie Cave. She seems to possess the same interesting fashion sense and sparkling individuality as Lavender, and she's channeled that into her chosen career path after the films ended. Instead of continuing down the line of traditional acting work, Cave has re-invented herself as a comedian. She's appeared on several television shows and comedy festivals with a character named 'Bookworm' whom she freely admits is partially based on obsessive Potter fans. Unsurprisingly, Cave has also moved into the world of fashion design.