 In addition several other long running characters left the show that year including two original cast members, Sue and Ali Osman (Sandy Ratcliff and Nejdet Salih) and their family; Donna Ludlow (Matilda Ziegler); Carmel Jackson (Judith Jacob) and her family and one of the show's more controversial characters, Colin Russell (Michael Cashman).So, it was decided that 1989 was to be a year of change in Walford.