Jenny Calendar
Jenny Calendar was Sunnydale High School's computer-science teacher, and Giles's love interest until she was killed by Angel in "Passion". She was secretly spying on Angel for the Romany tribe as she was chosen from the clan to ensure that Angel did not recieve happiness while living on Earth. She was into spells and the dark forces, and she proved to be a valiant memeber of the Slayerettes as she de-coded the spell that restored Angel's soul to him in "Becoming, Part 2", when Willow along with Oz and Cordelia performed the ritual in Willow's hospital room at Sunnydale General Hospital. Before everything between her and Giles could be patched up, actually on the night that it was supposed to be done, she was hunted down in the school by Angel and killed, her neck broken. Giles came home to find her body on his bed, with roses and wine around the house, looking like a romantic night, she was found by her friend and loved one, Giles. She has appeared to Angel in "Amends" as her ghost haunted him, but Jenny Calendar will be greatly missed by all, especially Giles and the Slayerettes.
Kendra
Kendra first appeared in the episode "What's My Line? Part1". Buffy initially believes that Kendra is out to kill her, and Kendra thought the same of Buffy, therefore they fought. They then found out that they were allies in the war against vampires and that when Buffy died in "Prophecy Girl", from being drowned by The Master, and then revived by Xander, that Kendra was activated as a Slayer as well. Kendra seems to be from a Carribean island and she seemed to be more into the research and study of her enemies, much to Giles's liking. She was a good friend to Buffy and the Slayerettes as she helped in many battles including in "Becoming, Part 1", when she was killed by Drusilla. Buffy was fighting Angel away from the school when a raiding party led by Drusilla rocked the library killing Kendra, braking Xander's wrist, putting Willow into a coma, and taking Giles for their own use at the mansion. Kendra's body was found by Buffy on its last breath as Buffy dove to her dying corpse. Kendra was a valiable member of the Slayerettes, being a great Slayer; a well skilled one at that, and a good friend to all, especially to Buffy, as Kendra gave her "Mr. Pointy" her lucky stake. She will be forever missed.