Matt Ryan stars as Constantine , a British exorcist and occult detective who actively hunts supernatural entities .
Constantine is an American television series developed by Daniel Cerone and David S. Goyer for NBC , featuring the DC Comics character John Constantine .
Matt Ryan stars as John Constantine , a British John Constantine and occult detective who actively hunts supernatural entities .
Constantine is an American television series developed by Daniel Cerone and David S. Goyer for NBC , featuring the DC Comics character John Constantine .