The actor plays Murdoc's former cellmate in the season 1 finale

By Samantha Highfill
April 10, 2017 at 11:55 AM EDT

The King of Hell has escaped. Or at least his vessel has.

Supernatural‘s Mark Sheppard is headed to MacGyver as a guest star in the upcoming season 1 finale. Sheppard plays Murdoc’s former cellmate, who poses as a lab tech in order to make his way into the Phoenix Foundation. In other words, he’s an inside man for a very dangerous villain.

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EW has an exclusive first look at Sheppard’s time on the show, including a fight with MacGyver himself.


The MacGyver season finale airs Friday, April 14 at 8 p.m. ET on CBS.