Castor is the News and Editorial director at student radio station 95bFM, and one of the hosts of the station's news and current affairs show, The Wire. The Wire looks at issues in Tāmaki Makaurau and across the motu from an independent, bFM perspective. Castor also produces bLine, the station's news podcast, aimed at bridging the gap between young people and decision-makers in society. bLine tackles problem from a youth-centric perspective, often including young people directly in the planning and interviewing processes.