Karen Hewitt is a main character of the Original Series and is arguably Bernard's best friend. She is the same age as Bernard and goes to the same school as he does. She first finds about The Watch in Plenty of Time when Bernard accidentally leaves the watch at school. From then on she joins Bernard in his out of time adventures in many episodes. Bernard being late to her party in the first episode is one of the reasons that the Postman give him the watch in the first place. Karen has writing stories.