Calculating Cathy 3rd July 2015DebbieHumour, magiclorrsadmin Plot Cathy Palmer owns a magical calculator which can help her out or cause lots of trouble! Notes Appeared Calculating Cathy – Debbie: #424 (28 March 1981) – #432 (23 May 1981) OtherĀ Appearances: Calculating Cathy – Debbie Annual 1984