Anna Cathcart is busier than ever ... "I am going to university right now, or actually just finished my semester a few days ago, and I'm still coming down from the stress of finals," she noted.

Anna Cathcart is stepping back into her role of ... Peter Kavinsky (Noah Centineo). Now, Kitty's all grown up. She's 16, on the cusp of her sophomore year of high school, and she's got her own ...