"Forsaking All Others - Part One" is the 960th episode of Casualty and the 45th episode of the 29th series. It was preceded by "Knock Knock Who's There?" and followed by "Forsaking All Others - Part Two". This episode marks the last appearance of Tess Bateman, portrayed by Suzanne Packer, who joined the cast in 2003. She went on to make a guest appearance as the character just over a year later.