Des star David Tenant isolated himself from his co stars in the ITV drama in a method acting move to ensure their icy distance felt real.
Daniel Mays, who plays DCI Peter Jay on the show, spoke to Phillip Schofield and Holly Willoughby on This Morning on Monday.
He said that David, who plays the chilling serial killer David Nilsen, deliberately stayed away from the actors who played police officers, rather than bonding with the rest of the group on set.
Daniel said David's performance was "one of the most eerie and captivating performances he had ever worked across from." And the former Doctor Who star even learned how to mimic Dennis' real signature, so deeply immersed was he into the role. "He kept separate to all the actors playing the
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