Titus Welliver played one of the Four Horsemen of the Apocalypse on The CW series, thanks to his friendship with producer Bob Singer, who worked on the short-lived CBS crime drama "Falcone" starring Jason Gedrick and Welliver.

Hanging with Sam and Dean “was a blast… I love those guys,” he says, adding that his reception among "Supernatural" devotees was a pleasant surprise: “I had no idea the epic nature of the fandom for that show.”

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