Few researchers have explored family carers’ perspectives of smoking by their family members with mental illness, despite smoking rates remaining high for people with mental illness. In-depth qualitative interviews with twelve South Australian family carers explored their experiences and views of providing care for people with mental illness who smoke. Data were analysed thematically. Around the central theme of the caring role within the context of mental illness and smoking, were three interrelated themes: (1) responsibility; (2) accommodation; and, (3) dissonance.