math, she takes after her mother in that she is rude and snobby, and that her grandma is very close to her heart. Her appearances generally involve her being mean to Sabrina and others, and getting poetic justice at the end of the episode. At the start of season 4, Libby was sent off to boarding school and was never seen again. Valerie Birkhead Valerie is Sabrina Spellman and Harvey Kinkle's mortal best friend at Westbridge High School. She is also despised by headstrong cheerleader Libby, who rivals both her and Sabrina for much of the show. Valerie remains Sabrina's best friend until she moves to Anchorage, Alaska, in 1999. She is a shy and often awkward girl who looks up to Sabrina despite being quite bright herself. Valerie often expresses her wish to be in the "cool crowd" even trying her hand, and winning a spot on the second string cheerleading squad in season 3, much to the worry of Sabrina who feared Valerie would transform into a mean, spiteful person like Libby. At the start of Season 4, she moved to Alaska with her family. She had agreed to move in with Sabrina to attend their senior year together, but then she decided to stay in Alaska instead. She was played by American actress Lindsay Sloane. Mr. Willard Kraft "Mr. Kraft", as he is often addressed on the show, is portrayed by Martin Mull. He is an administrator at Westbridge High School and regularly issues detentions at the drop of a hat (sometimes literally). He also expresses a personal dislike for Sabrina, Harvey, and Valerie (particularly Sabrina), and occasionally gives them detentions simply because he does not like them. He started out as Vice Principal in the second and third seasons before becoming principal in Season 4. He is known to have one brother and one sister. Mr. Kraft dated both Hilda and Zelda during the show, causing complications for Sabrina. Mr. Kraft is a mortal, but in one of the episodes where Sabrina and Hilda try to separate Zelda and Mr. Kraft, they find out that he was once married to a witch (named Lucy, played by actress Julia Duffy) who tried using her magic to trick Mr. Kraft as revenge for leaving her. At the end of season 4, Zelda breaks up with Mr. Kraft, who is then hit by a car, thanks to joyriding Hilda,