Sam is a former student having attended Yandere High.
Sam had long, wavy blonde hair that parted on the right, and dark blue eyes.
She wore a white blouse with blue stripes on the sleeves to Senpai's birthday party. She also wore black denim short-shorts and white sneakers.
She, Michelle, and Quinn were attending Senpai's birthday party in episode 21 ("Senpai's Kiss!"). It is unknown if they were invited or if they crashed the party. Sam was blabbering on to Funneh and Gold about how, once Valerie left, that "Senpai would be all hers". Later, when Yandere Chan took the entire party to an abandoned house in the woods to play Truth or Dare, Sam dared Senpai to accompany her into the nearby closet. There, they apparently made out. After coming out, Sam said that Senpai was a good kisser. This triggered Yandere Chan. She potentially turned off all the lights in the room and thereafter killed Sam.