<P> Frank and Laura Benton (Stephen Mendel and Jennifer McComb) are a homeless father and daughter, respectively (in the 2 - part season 3 episode "Home for Christmas"), who catches the eye of Zack and the gang around Christmas time . Laura, who works in a department store with Kelly, seems to be a tentative love interest for Zack; she is very shy around Zack about her homelessness . Zack, Slater and Screech get Frank to a hospital when he passes out at the mall from hunger, and then they find out he is Laura's father . Laura's boss accuses her of stealing a suit jacket that Kelly set aside to buy, so Frank would have an outfit that he could wear to job interviews . Later, Laura's boss apologizes and gives Laura the jacket for free . Eventually, the Morris family takes in the Bentons until they could "get back on their feet ." </P> <P> Gem Diamond (Gary Beach) is a con artist (in "Class Rings" (4.12)) who sells Zack fake class rings, which turn the wearer's finger green . Desperate to replace the bunk rings with the genuine article, Zack and Slater make a plan in which Screech threatens Gem with karate unless he replaces the rings . Gem concedes, and the student body is satisfied with their new jewelry . He is last seen running out of the Max, being driven away by his mother in an attempt to escape from Screech's moves . Gem also appears in the California Dreams episode "Honest Sly" as a used car dealer . </P> <P> Chief Henry (portrayed by Dehl Berti) is an American Indian (in "Running Zack" (2.13)) with whom Zack bonds during his family history project . Zack initially tries to skip the project because he has a big track meet coming up, and later gives an insulting presentation that leads the teacher to refer him to the Chief . While they quickly become good friends, Henry dies suddenly, with Zack lamenting that they had hardly had time to get to know each other . Later, Henry's ghost appears to Zack, giving him a gift and encouraging him to run at the school track meet . </P> <P> Kevin the Robot (operated and voiced by Mike Lavelle) was a creation of Screech's with artificial intelligence (appearing in 3 episodes during seasons 1 & 2), who lives in Screech's room and usually dishes out advice and witty remarks . His appearances include him as Screech's assistant when Screech is doing a magic show; and as assistant hall monitor when Screech is nominated for the post by his classmates, to make up for forgetting Screech's birthday . </P>

Who played chief henry in saved by the bell