This paper outlines art form impacts used within Staging Time at an adult male sex offender prison in England by drawing on the voices of prisoners (aged 21–75 years), including those with undiagnosed autistic traits. We qualitatively investigate prisoner experiences from drama (n = 11), dance (n = 12), puppetry (n = 7) and singing (n = 15) projects using a theory of change approach. Based on a themed analysis of self-report data from 4 world cafés and 44 follow-up questionnaires, we conclude arts projects positively contribute to health and well-being, forming healthy relationships and prison culture. By applying a desistance theory lens, we argue arts projects provide building blocks towards crime abstinence. Whilst all arts projects improved prisoner well-being, dance had a greater propensity for increasing physical fitness. With a focus on dance impacts, our research widened to stakeholder and practitioner interviews (n = 4), alongside analysis of secondary data from dance performance audience feedback sheets (n = 48) collected by Staging Time. Audience members included prison staff, prisoners, prisoner family members and close friends and a small group of invited stakeholders. Arts projects have wider impacts on staff, other prisoners and family members.