Given the following context:

Regina is a lonely young college student. The rest of the students are leaving for spring break, but Regina has no money and no plans. As she is opening her mail, she notices she's received a mysterious letter telling her that she's won a free vacation at a seaside bed and breakfast called the Red Wolf Inn. When she calls the phone number in the letter, they tell her that a private plane is waiting for her at the airport, and that she'd better hurry. The plane takes her to a remote rural destination, where she is greeted by a handsome but odd young man who says his name is Baby John Smith. Baby John takes her on a thrill ride speeding through town and evading the police. When Regina enjoys the chase instead of being afraid, Baby John is impressed. 
Arriving at the Inn, she is greeted by Henry Smith and Evelyn Smith, the elderly proprietors of the mansion. They identify themselves as Baby John's grandparents. There are two other guests as well, both lovely young females named Pamela and Edwina. Regina asks to use the phone so she can call her mother, but it's out of order. The group sits down to an extravagant meal, during which Evelyn prompts them all to eat more and more. That night, Regina goes to the kitchen to look for antacid. She is terrified when Baby John suddenly emerges from the walk-in refrigerator, brandishing a large knife. Her screaming wakes everyone else in the house, and Baby John apologizes for scaring her. Before going back to sleep, Edwina talks with Regina and says she can tell Regina and Baby John are attracted to one another, and Regina admits that it's true.

answer the following question:

What is the name of the person who wakes everyone up with their screaming? 

Regina