The nineteenth series of the British medical drama television series Casualty commenced airing in the United Kingdom on BBC One on 11 September 2004 and finished on 20 August 2005.
Foz Allan continues as series producer up until Episode 10 after which Jane Dauncey takes over.
This series saw another increase in episodes, this time to 48. For the Christmas episodes of the series, two cross-over episodes with Holby City were shown, titled as Casualty@Holby City. The series two part opener "The Ties That Bind Us", aired on consecutive Saturday and Sunday nights.
The British pop rock band McFly made a guest appearance as themselves in Episode 19 of the series, titled "Fathers, Mothers, Daughters, Brothers." In the episode, they visit a fan who was injured while attempting to see the band through a hotel window. Producers approached McFly as they wanted a real band to enhance the storyline written. The band accepted and filmed scenes whilst on tour in Bristol.
The nineteenth series of Casualty features a cast of characters working in the emergency department of Holby City Hospital and Holby Ambulance Service. Thirteen cast members from the previous series reprise their roles in this series.
Simon MacCorkindale stars as emergency medicine consultant and clinical director Harry Harper and Maxwell Caulfield as consultant paediatrician Jim Brodie.
Suzanne Packer continues her role as emergency nurse practitioner Tess Bateman, Louise Brealey and Leanne Wilson as staff nurses Roxanne "Roxy" Bird and Claire Guildford and James Redmond as mental health nurse John "Abs" Denham.
Ian Bleasdale stars as operational duty manager for Holby Ambulance Service Josh Griffiths. Kwame Kwei-Armah, Martina Laird and Matthew Wait continue their role as paramedics Finlay "Fin" Newton, Comfort Jones and Luke Warren with Rebekah Gibbs as ambulance technician Nina Farr.
Sarah Manners continues as receptionist Bex Reynolds with Derek Thompson returning as senior charge nurse and emergency nurse practitioner Charlie Fairhead midway through the series after a six month hiatus.
Liz Carling joins the series in Episode 1 reprising her role as Selena Donovan, now a police surgeon. Georgina Bouzova makes her debut in Episode 3 as staff nurse Ellen Zitek whilst Brealey departs in this episode. Luke Bailey arrives in Episode 5 as receptionist and Tess's son Sam Bateman with Kwei-Armah leaving the series in the same episode. Initially Kwei-Armah had signed a contract for another full series but changed his mind to spend more time with his family. On leaving the series he stated "I asked not to die on screen and they respected that."
Elyes Gabel joins in Episode 8 as senior house officer Guppy Sandhu with Will Thorp arriving in Episode 14 as paramedic Woody Joyner.
Caulfield departs the series in Episode 17 which doubles as Casualty@Holby City part one before appearing in part two which was shown on 28 December 2004. This doubles as Episode 11 of Holby City series 7 where his character dies in the hospital explosion. Susan Cookson arrives in Episode 22 as specialist registrar in emergency medicine Maggie Coldwell. Cookson had previously guest starred as anaesthetist Julie Day in a number of episodes in series 13 and 14. Manners departs in Episode 44 with Janine Mellor making her debut in Episode 45 as staff nurse Kelsey Phillips. Wilson leaves at the conclusion of the series.
Episode 17 was the first half of a two-part crossover with Holby City and also featured the following Holby City castmembers:
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