Sandra Dier (portrayed by Marta Kober) is a supporting character in the slasher film Friday the 13th - Part 2. She and her boyfriend Jeff attended Paul Holt's counselor training center in Packanack Lodge near Crystal Lake in 1984.
On the first night at the lodge, Paul tells his new trainees about the legend surrounding Camp Crystal Lake and Jason Voorhees. The trainees are led to believe that it's only a story, although they are warned that the old camp has been declared off-limits. The next day, however, Sandra convinces Jeff to come with her to the camp to check it out. On the camp grounds, they find a mutilated dog, but shortly after they are found by Deputy Winslow and brought back to Packanack. Paul gives the pair a halfhearted reprimand by disallowing them a second dessert after supper.
Death[]
Sandra is the eighth person to die in the film and Jason's eighth victim overall. The following night, while she and Jeff are having sex in their cabin, Jason enters while brandishing a spear. Sandra sees Jason and screams just before the masked killer plunges the spear through Jeff's back and through her as well, killing them both at once.