Background This study aimed to develop an innovation to assist general practitioners (GPs) in Australia to proactively address the needs of caregivers of people with cancer. Method Six GPs were video recorded each consulting six actor-patients in their respective practices. All cases depicted caregivers of people with cancer. The patients were instructed to complete a Needs Assessment Tool for Caregivers (NAT-C), before the consultation. Actor-patients were instructed to present the NAT-C to three of the six GPs they consulted, selected at random.