Cian O’Carroll, a solicitor since 1996, specialises in litigation. Initially working in criminal defense, employment law, and personal injury, he developed a focus on injustices against the State. Notably, his advocacy for Brian Rossiter’s family led to a statutory inquiry, an apology, damages, and changes to regulations for young persons in Garda custody.

He is best known for medical negligence, particularly cancer misdiagnosis cases (breast, ovarian, cervical), and has supported courageous women like Olive Fahey, Emma Mhic Mhathúna, Vicky Phelan, and Ruth Morrissey in improving healthcare. In 2019, he received a Special Merit Award for his team’s work on CervicalCheck. Cian continues to advocate for clients through media and participates in the Vicky Phelan Campaign and Portrait Tour to promote health and accountability.