Merlin debuted the role of Dr. Hill in Stuart Gordon's award-winning "Re-Animator: The Musical," and was decapitated 200 times in Las Vegas, Edinburgh, New York and Los Angeles, earning an Ovation Award nomination and a rave review in the New York Times. He sings on the forthcoming Original Cast Album.

He plays the mysterious Elric in Jackson Stewart's "Beyond the Gates," which won the Nightfall Jury Prize at the LA Film Festival, and attended its European premiere at Fright Fest in London. He voices Impact Man in "Mega Man 11" and F.A.N.G in "Street Fighter V," and in Ross Patterson films plays 2LT Chandler in "Range 15," William Keller in "Helen Keller vs Nightwolves," and Werewolf Hitler in "FDR: American Badass!" He played the homicidal cult-leader Sugarplum in two episodes of Blumhouse's "12 Deadly Days," appears in various episodes of "Dream Corp LLC" on Adult Swim, and voiced Makube in "Hellsing Ultimate X" and Liquid Terror in "The Reflection." Other appearances include "Jackass 3D/3.5," "All The Creatures Were Stirring," "Cabaret of the Dead," and several upcoming features.