 The 'Beryl' role was filled by a different guest in every episode; these guests included Pam Ayres, Patsy Rowlands, Wilf Lunn and Kenny Lynch.But probably the most memorable was Pat Coombs whose eponymous character was a WPC.The stories continued to be written by Shirley Isherwood who had written the Billie stories but now featured other characters which changed from week to week though there were some regulars such as Robert and his pet alien Grimond.