<P> Despite her attempts at adopting the behavior of her more affluent neighbors, she still retains her kindness . She befriends Anne Brookes, the wife of Jeffrey Brookes III, a real estate agent who lives next door, and enjoys the company of their son, David . </P> <P> Helen and Stanley returned to the trio's apartment in a special guest appearance . Helen was frustrated with Stanley because he forgot their anniversary . She went downstairs to Ralph Furley's apartment to get some sleep (Mr. Furley was out of town at the time). A very tired Mr. Furley returned home early and went straight to bed, unaware that he was not alone . Soon, Mr. Roper came in the bedroom and said, "Helen, if this (a supposed affair with Mr. Furley) is what you want, so be it ." Helen was upset and still angry . "Aren't you gonna fight for me?" she asked Stanley . Later, Stanley came back and started fighting for Helen against Mr. Furley, which made Helen happy . Soon, the two went to sleep in Mr. Furley's bed, which could have been the answer to Helen's wishes . </P> <P> Ralph Furley was portrayed by Don Knotts . </P> <P> Ralph Furley is the landlord and manager of a Santa Monica apartment building that is now owned by his brother, Bart, who acquired it from Stanley Roper . It is the home to Jack Tripper, Larry Dallas, Janet Wood, and Chrissy Snow (later to Cindy Snow, then Terri Alden). Mr. Furley fancies himself a playboy, a "ladies' man" and a "macho man", despite the fact he has not had a date in years and not appealing to women at all . </P>

Who played mr. furley on three's company