Martin Lane Schallert also had a dual role as Kenneth Lane in three season one episodes, and as Uncle Jed in a season three episode Jean Byron as Natalie Lane, Patty's mother Paul O'Keefe as Ross Lane, Patty's brother Eddie Applegate as Richard Harrison, Patty's boyfriend Rita McLaughlin served as a double for Duke in the third season, but was never credited. In the series' unaired pilot episode, Mark Miller and Charles Herbert played Martin and Ross Lane, respectively. Major recurring Kitty Sullivan as Sue Ellen Turner (seasons 1-2), Patty's frenemy. She was replaced by Roz and Monica Robinson in the third season. Cindy Williams portrayed Sue Ellen in Still Rockin' in Brooklyn Heights when Sullivan was unavailable. John McGiver as J.R. Castle (season 1), Martin's boss at the Chronicle. He is not shown or mentioned after the first season. David Doyle as Jonathan Harrison (seasons 1-2), Richard's father who is a construction engineer. John Spencer as Henry (seasons 1-2), one of Patty's classmates. Kelly Wood as Gloria (season 2), one of Patty's friends. Marcia Strassman as Adeline (season 2), one of Patty's classmates. Robyn Millan as Roz (season 3), one of Patty's classmates. Laura Barton/Kathy Garver as Monica Robinson (season 3), Patty's rival. She replaces the Sue Ellen Turner character. Notable guest stars Jean-Pierre Aumont ("The French Teacher" 1963) Ilka Chase ("The House Guest" 1963) Alan Mowbray ("The Actress" 1963) Joan Copeland ("Are Mothers People?" 1964) Susan Anspach (as Susan: "Cathy, the Rebel" and "Will the Real Sammy Davis Please Hang Up?" 1965) Frankie Avalon ("How to Be Popular" 1963; "A Foggy Day in Brooklyn Heights" 1965) Kaye Ballard ("The Perfect Teenager" 1964) James Brolin ("Patty Meets the Great Outdoors" 1965) Roger C. Carmel ("Author! Author!" 1964) Kim Carnes ("Patty Meets the Great Outdoors" 1965) Jeremy Clyde ("Patty Pits Wits, Two Brits Hits" 1965) Sammy Davis Jr. ("Will the Real Sammy Davis Please Hang Up?" 1965) Jimmy Dean ("The Songwriters" 1964) Troy Donahue ("Operation: Tonsils" 1965) Dick Gautier ("Anywhere I Hang My Horn Is Home" 1966) George Gaynes ("The Perfect Hostess" 1965) Robert Goulet ("Don't Monkey with Mendel" 1965) Margaret Hamilton (as Maid: "Double Date" 1963; "Let 'Em Eat Cake" 1964) George S. Irving ("Let 'Em Eat Cake" 1964) Peter Lawford ("Will the Real Sammy Davis Please Hang Up?" 1965) Paul Lynde ("The Genius" 1963) Sal Mineo ("Patty Meets a Celebrity" 1965) Estelle Parsons ("The Con Artist" 1964) Neva