Marty Kirkby is a fictional character from the BBC medical drama Casualty, portrayed by actor Shaheen Jafargholi. He first appears in the thirteenth episode of the thirty-fourth series, first broadcast on 17 November 2018. Jafargholi's casting was announced on 1 August 2018 and he was invited to read for the role shortly after finishing filming on EastEnders. Marty is characterised as a young and fashionable student nurse with a "razor sharp wit". He is a confident nurse who has a blunt bedside manner and excellent clinical skills.