'Chernobyl' viewers shocked to see Eastenders villain Trevor Morgan naked onscreen

British actors Kasey Ainsworth (L), Alex Ferns (C) and Jessie Wallace (R) from the program "Eastenders" in 2000. (Photo by Dave Hogan/Getty Images)

Fans of Sky Original’s series Chernobyl were stunned to see former EastEnders actor Alex Ferns appear nude in the hit series.

The new drama tells the story of the catastrophic nuclear disaster at the Chernobyl Nuclear Power Plant in 1986.

Alex - famous for his role as villain Trevor in the BBC soap - plays Glukhov, the chief of miners working in the aftermath of the Chernobyl disaster.

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He leads his colleagues to rebel by stripping completely naked after bosses refused to let miners use fans, despite the intense heat.

Episode 3 of Chernobyl saw coalminers stripping out to work in extreme temperatures. (Sky)

Chernobyl is a hit with viewers, having beaten both Game of Thrones and Breaking Bad to become the highest-rated show ever on IMDb.

Viewers were quick to light up social media with comments on Alex Fern's shock appearance.

One wrote: "Caught up with Chernobyl and I never thought I'd see Trevor from EastEnders' penis but here we are."

Another Tweeted: “Loving Trevor from Eastenders turning up in Chernobyl. It looks like he will end up dying of radiation poisoning and given his treatment of little Mo I have no sympathy.”

A third viewer tweeted a succinct list of her reactions to the sight: “Things i wasn't expecting to see in #Chernobyl - 1. Trevor off Eastenders, 2. Trevor off Eastenders in the nip.”

“Seeing more of Trevor from EastEnders in #Chernobyl than expected” said another surprised viewer.

One very cheeky Tweeter weighed in with: “Shout out to Chernobyl for finally showing us why Trevor from Eastenders was so angry.”

Chernobyl dramatises the events that took place in Ukraine before and after the nuclear accident on 25–26 April 1986 that resulted in the immediate death of 28 people.

During the accident, steam-blast effects caused two deaths within the facility - one just after the explosion, and the other compounded by a lethal dose of radiation.

As the drama unfolds, the culture of lies that led to the disaster is exposed. The drama follows physicist and chief of commission investigating the disaster, Valery Legasov, played by Jared Harris.