Medical dispute committees in the Netherlands were formalised in 2017. They offer hybrid procedures, combining complaints handling with the processing of a potential claim in cases where a complaint could not be resolved at the health care organisation. Recent scholarship has shown the experiences of complainants (patients and families) with dispute committees, but research regarding the roles and experiences of the defendants (usually representatives of health care organisations) is lacking. This research aims to understand how defendants understand and fulfil their professional roles and how this could impact the dispute committee proceedings. This research features an inductive, thematic analysis of in-depth interviews with defendants at medical dispute committees. Researchers conducted interviews with eighteen defendants at dispute committees. Defendants were generally managers and legal counsel at health care organisations. The main results include defendants who preferred problem-solving and who wanted to avoid conflict. Defendants did not have a strong adversarial mindset, but they did highlight their commitment to defend the health care professional and institution. Some respondents felt forced into a defensive position, which they reluctantly fulfilled. Our main conclusion is that dispute committee proceedings can demand defendants to take on an adversarial role, despite the best intentions of the legislator to create a less legal procedure and a problem-solving mindset among the defendants. The expectations of defendants and patients might connect better to a problem-solving, healing role of defendants and a less formal set-up.