Casualty: Ambulance Runs Over Pedestrian – The Tragic Incident That Rocked Iain Dean
- by btv2025
- Posted on 20 June, 2025
One of the most harrowing and emotionally impactful storylines in Casualty‘s history saw our ambulance service heroes involved in a devastating accident: an ambulance hit and killed a pedestrian, leaving lasting consequences for the medical staff.
The Incident That Changed Everything for Iain Dean
The episode you’re referring to occurred in Series 30 (aired in 2016) and featured paramedic Iain Dean (played by Michael Stevenson) as its central figure.
The accident happened during an extremely tense moment: Iain and his then-partner, Lily Chao (Crystal Yu), were responding to an emergency call in their ambulance. Suddenly, a young girl named Jessica (Olivia Buckle) ran into the road and was tragically struck by the ambulance.
Devastating Professional and Emotional Aftermath
Jessica’s death had a catastrophic impact on Iain Dean. Despite investigations confirming that the accident wasn’t his fault (Jessica had run out unexpectedly), the immense guilt of causing a child’s death deeply tormented Iain.
This trauma marked the beginning of a long and difficult battle for Iain against:
- Post-Traumatic Stress Disorder (PTSD): The images of the accident haunted him constantly.
- Depression: Iain spiraled into severe depression, struggling with self-blame and his own worth.
- Suicide Attempts: His fight for mental health reached a critical point, leading him to attempt suicide on several occasions, in some of the show’s most powerful and moving storylines.
Lily Chao, who was present at the accident, was also profoundly shaken by the event. This storyline highlighted the immense psychological pressures and emotional toll that emergency service personnel face daily, and how a single incident can have long-term repercussions on their lives and careers.
One of the most harrowing and emotionally impactful storylines in Casualty‘s history saw our ambulance service heroes involved in a devastating accident: an ambulance hit and killed a pedestrian, leaving lasting consequences for the medical staff. The Incident That Changed Everything for Iain Dean The episode you’re referring to occurred in Series 30 (aired in…