by his first name but calling Katherine "Ma'am." In one episode Katherine asked Webster why he used such a formal name, and he explained that he was calling her as close to "Mom" as he could without disrespecting his birth mother. George often called Webster "Web." Shortly into the second season, Webster accidentally burned down the family's apartment with a science kit, and the Papadopolises had to leave the high-rise. In the next episode, the family moved to a large Victorian house located at 1432 North State Parkway in Chicago's Gold Coast (). Bill and Cassie Parker (Eugene Roche and Cathryn Damon) were the gregarious middle-aged couple who leased the house to the Papadopolises while they moved into a basement apartment below. Bill, a craftsman/shop teacher, and Cassie, an editor of high-profile romantic and crime novels, were taking in rent in order to complete the numerous additions they were making to the property. George and Bill, despite the competitiveness that occurred between them, became good buddies; Cassie and Katherine became each other's confidants; and Webster easily became the apple of the Parkers' eye, often retreating to the basement for special quality time with them. Later in the second season, a thread of drama was added when the Parkers' estranged daughter Maggie Parker (guest star Jennifer Holmes) appeared for a tearful-reunion episode, complete with a son. Bill and Cassie also had a son named Regis, who was referred to but never seen. Many more of Webster's friends and classmates passed through, including Rob Whitaker (Chad Allen). A recent "divorce kid" living with his mother, Rob was kidnapped by his father in one episode, and the Papadopolises and the community rallied to help Rob's mother find him. When he returned, it was Katherine who successfully intervened with his father. Later in the third season, Rob's last name inexplicably became Joiner. Bill and Cassie disappeared after the third season; Cathryn Damon had left the series upon having been diagnosed with ovarian cancer (which ultimately took her life in May 1987), and instead of recasting her role, Eugene Roche was dropped as well so that their characters would not have to be used. Damon and Roche were no longer credited on the show beginning with the season four premiere, nor were their characters evident in that episode; in the second episode of the season ("The Landlords", aired September 26, 1986), it was finally explained