<P> A few episodes into the series, Sara's addle - headed friend Monroe Ficus, played by actor Jim J. Bullock, made an appearance . Although he was originally intended to be used for only a single episode, producers added the character to the series . Monroe was introduced to Henry by Sara as a depressed, lonely fellow student and street musician . Although Sara (with help from Jackie) tried to help him and send him on his way, Monroe found himself getting woven into the entire family's affairs and he became just a "friend" of Sara's and Henry's principal (if unintended) foil . During the first two seasons, Selma Diamond made guest appearances as Mildred Rafkin, sister of the late Myron . Sardonic, deadpan Mildred initially showed up to collect belongings left by Myron / Neville in the downstairs apartment, but continued to hang around thereafter . Seemingly, there were sentimental reasons, but occasionally she would attempt to make time with the much younger Monroe, whom she had an eye for . </P> <P> Also added in early 1981 was Arthur Wainwright (Hamilton Camp), Henry's boss and head of Wainwright Publishing, who nearly decided to force the veteran cartoonist and Cosmic Cow into retirement in order to maintain a youth - oriented staff . The short - statured Mr. Wainwright, who spoke with Shakespearean diction and fancied himself an amateur detective (as a result of the famous mystery novels his company published), eventually let Henry stay with the firm, after the latter proved adept in helping him solve the mystery of Sara's stolen purse . Wainwright no longer appeared in person after the first season, but was referred to . Later, at the start of the fifth season, Graham Jarvis began appearing as Wainwright in a few guest appearances . </P> <P> During its second season, the series' principal stories are focused around Muriel's pregnancy . Additionally, Henry's niece April (Deena Freeman) comes from Delaware to live with the Rush family . The season concludes with Muriel giving birth to a son, Andrew (later played regularly by twins William and Michael Cannon from 1983 to 1984). </P> <P> For the third season, April departs and the character of Muriel's mother, Iris Martin (Audrey Meadows) is added in order to help take care of Andrew . Also that fall, Jackie becomes engaged to her steady boyfriend, police officer Brad Turner (played by Gary Dontzig in one episode and by Jordan Suffin thereafter), but they broke it off after a short time . Jackie eventually moved into the field of fashion design, taking courses and producing her own clothing templates, which she later had produced as "The Jacqueline Rush Collection ." Sara, meanwhile, decided to major in communications and, while continuing her studies, became a weather girl for a time at a major San Francisco TV station . Monroe seemed to be detached from Sara's circle of friends, but was taking the same major as her and became a security guard around campus . </P>

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