Serial killers are notorious for keeping secrets well hidden, but we’ve managed to get a few details about Nick Gomez‘s upcoming guest spot on Dexter.

Gomez will play hit man Javier Guzman on the Showtime drama, TVLine has learned.

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The character — who goes by the nickname El Sapo — will find himself frustrated when Debra gets in between him and his target, which probably isn’t great news for Dexter’s sis. (But after last season’s finale, maybe El Sapo should stay outta her way.)

Walking Dead fans will recognize Gomez as the alpha-male convict Rick cleaved through the skull. The actor’s TV credits also include Treme, Wendy and Dawson’s Creek.