Dr Hannah Chantler and Katie Hutchinson talk to us about their roles in planning radiotherapy treatment and how this fits into the patient pathway. Hannah is our Head of Radiotherapy Planning, working closely with leaders in the Radiotherapy Department at Addenbrooke's Hospital in Cambridge, UK, and guiding the planning team, whilst Katie is one of our leaders in dosimetry. They explain the importance of radiotherapy planning right from the beginning of the patient pathway, and highlight the interesting ways that they found out about radiotherapy as a career option.