Dr. Sapna Nehru is the ex-girlfriend of Professor Utonium, but had to break up with him due to her mutation which causes her to become a giant spider whenever she felt love.
She initially tried to engage a romantic relationship with Professor Utonium, but could not continue it due to her mutative condition.
She went to the jungle to study and fell in to the green, toxic lake. Her condition became worse and she could not transform into a human again. Then, Professor Utonium shot her and her condition became better, but is not fully cured yet.
She is a dark skinned, bespectacled adult female, of average height and build. As a spider, she's 100 stories tall.
She has an awkward, but friendly personality, capable of charming or annoying those around at the drop of a hat. As a spider, she's violent and animalistic.
Sapna has truly grown fond of the Professor and genuinely loves him, and he mutually loves her back, so she decided to withhold the truth about her condition until she got to know him better. While the girls forge a breakup note, Sapna realizes that it would never work considering the fact that loving feelings trigger her transformation, and she broke up with Professor Utonium, leaving him in a deep depression. Later on, after learning her secret, Professor Utonium told Sapna that he is fine with it and they will work through it together. But Sapna refused, saying that they cannot truly be together until she is cured.
Powers and Abilities
She is a biologist specializing in arachnids.
Whenever she feels love, she turns into a giant spider.
- She alludes to previous love-interests of the Professor, Ms. Keane and Sedusa, the former because he openly expresses his romantic affections to her, and the latter because she was secretly a villain. The main difference in her with both, is that her relationship with Utonium appeared more adult, and she wasn't actually evil but suffered from an unfortunate affliction of spider DNA.
- Despite the fact that Sapna's existence in the episode respects the Professor's love life, the character herself is widely panned by a wide part of the fandom - mainly due to the episode having her compete with the girls for the Professor, thus making Sapna one of the most unpopular PPG characters. As a result, the PPG continuity still regards the Professor's attachment towards the girls, thus explicitly dismissing Sapna from canon.