<P> Nerdstrom (portrayed by Jeffrey Asch) is a rich nerd (appearing in 2 episodes in seasons 2 & 4) who is Violet Bickerstaff's boyfriend and treats her rather poorly, although he does buy her a gold - plated pocket protector . His poor treatment of her is one of the factors in her becoming Screech's girlfriend . While most of the nerds comport themselves with a bumbling dignity at most, Nerdstrom goes above and beyond, behaving as a pompous, stuck - up geek . He defeats Zack in a game of poker, but gets his comeuppance in the end . Perhaps Maxwell's most noted accomplishment at Bayside is mistakenly kissing Screech's dog, "Hound Dog" believing him to be Jessie, to everybody's delight . He is later humiliated when Screech pointed out that Maxwell kissed his dog and tells Maxwell to stay out of Violet's life . </P> <P> Ox (Troy Fromin) is a member of the Bayside football team and an archetypal "dumb jock" (appearing in 9 episodes in seasons 3 & 4) who pals around with Slater when Slater is without his Core - 6 friends . Despite being a jock, he dates a female nerd, and is often shown to be gentler and more sensitive than his size and oafish behavior would suggest . He is among the students who get drunk senior year at the toga party . A similar character named "Moose" also appeared on the show, however . </P> <P> Wendy (Judy Carmen) is an overweight girl who serves as Student Council treasurer (in "Date Auction") who bids $100 on Zack to win a date with him to the dance . He is mortified and his superficial nature causes him to craft a multitude of lies in order to avoid a date with the Rubenesque Wendy . However, when she finds out the truth, Wendy calls Zack out for hurting her feelings and calls off the date . He realizes his mistake and ends up taking Wendy to the dance and later to the Max (though this is not shown). </P> <P> Rod Belding (portrayed by Ed Blatchford) is Mr. Belding's brother and steps in as a substitute teacher during junior year (Screech: "A building with two Beldings, one of whom is balding!"), after Mr. Dickerson has a mental breakdown . He initially makes a hip impression on the students because of his happy - go - lucky attitude, world - weary demeanor, and tales of defying authority and schoolwork . Rod arranges to take the students on the rafting trip for their annual class trip (ruining Mr. Belding's plans to visit Yosemite Park) and attempts to teach them about it . Mr. Belding is overshadowed by his brother's connection with the students, which is evident in a minor confrontation they have when Mr. Belding tells his brother he is not to be teaching the kids whitewater rafting on official class time . After Zack accuses him of being jealous of Rod, he soon finds out what he's really like on the inside . During a confrontation with the brothers, Rod tries to skip out of the trip just to meet a stewardess named Inga . Mr. Belding is furious that Rod would abandon his commitment to the students and orders him never to come back to Bayside, saying, "Get out of my school ." Rod leaves as Zack ducks behind some lockers to avoid his sight . Not wanting to upset his students, Mr. Belding claims that Rod is ill . However, when he offers to chaperone the trip instead, the students happily and gratefully accept . Zack, who had secretly overheard the incident, tells his principal that "we got the better Belding ." </P>

Who played wendy on saved by the bell