Viewers of ITV’s Des were left gripped by David Tennant’s creepy performance as Scottish serial killer Dennis Nilsen.
But fans of the three-part series, which aired last night, were left confused by the actor’s “fantastic” accent – with some not realising he is actually from Scotland.
The new dark drama follows the 1983 arrest of the softly-spoken murderer who killed up to 15 young men and boys in London.
In the first episode, grisly scenes involved boiled heads, rotten torsos hidden in cupboards and comments about necrophilia.
Fans took to social media to discuss Tennant’s eery portrayal of the killer from Fraserburgh, Aberdeenshire – and praised him for ‘putting on a great Scottish accent’.
But it appears fans were not aware that the actor, who often speaks in an English accent for famous roles such as Doctor Who, is actually from Bathgate, West Lothian.
One fan tweeted: “David Tennant definitely nails the Scottish accent in #Des.”
Another wrote: “David Tennant puts on a great Scottish accent.”
A third commented: “It’s so refreshing to hear a Scottish accent done right. Also, David Tennant is a God. #des “
Viewers also praised the actor for his incredible and chilling performance as the notorious serial killer.
In last night’s episode, the mild-mannered and softly spoken serial killer immediately confessed to killing a handful of victims.
One wrote: “It’s genuinely freaking me out just how spot on David Tennant is portraying Dennis Nilsen. This is fantastic.”
Another wrote: “Whoever cast David Tennant as Dennis Nilson was inspired. He’s a dead ringer and the accent is exactly how we speak up here in the North East. Probably have nightmares but must watch it.”
Fans were also left incredibly disturbed by the scenes, with one tweeting: “Oh good grief. 15 minutes in and I am going to be actually sick.”
One tweeted: “Give all the awards to David Tennant. Id forgotten for a second it was him. So convincing.
“He makes me feel sick & full of fear. So emotionaless. And that right there is why David Tennant is the best actor of this generation and out there.”