Xie first makes an appearance in the video "These Are Cotton Swabs". After Poppy uses a cotton swab on her ear, she tries to use one on Xie, but concludes that "she has chosen to reject the cotton swab". Xie makes a second and final appearance in the video "Which Color Is It?". At the end of the video, Xie abruptly comes into the frame and interrupts Poppy mid-sentence, causing her to say "oh look, a feline has appeared".
Xie is a female short-hair tortoiseshell cat. She has green eyes.
- Xie's name was revealed in a now-deleted post on Poppy's Instagram.
- Xie is one of three living animals to have ever appeared in a Poppy video, the others being Wiggy and Pi.
- This also makes Xie one of two cats to appear in Poppy's videos.