Supernatural viewers will be seeing a lot more of the King of Hell next season.

According to The Hollywood Reporter, the long-running CW drama has promoted Mark Sheppard to series regular for the 10th season. He joins Jensen Ackles, Jared Padalecki and Misha Collins in the main cast.

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Sheppard plays the fan-favorite demon Crowley, who was introduced as King of the Crossroads in Season 5 before going on to secure the throne of Hell. He's become a staple of the series, sometimes opposing the Winchesters while other times assisting them (although almost always f0r his own gain).

A veteran of genre television, Sheppard has also appeared on such series as Firefly, Battlestar Galactica, Doctor Who and Dollhouse.