Five-Part Miniseries CHERNOBYL, an HBO/SKY Co-Production Starring Jared Harris, Stellan Skarsgard and Emily Watson, Written by Craig Mazin and Directed by Johan Renck, Debuts in May on HBO

Paul Ritter, Jessie Buckley, Adrian Rawlins And Con O’Neill Also Star; Carolyn Strauss, Jane Featherstone And Craig Mazin Executive Produce; Chris Fry And Johan Renck Co-Executive Produce; Sanne Wohlenberg Produces

Photo: Emily Watson as Ulana Khomyuk (Credit: Liam Daniel/HBO). Please note this is a promotional photo for press use only.

CHERNOBYL dramatizes the story of the 1986 nuclear accident, one of the worst man-made catastrophes in history, and of the brave men and women who made incredible sacrifices to save Europe from unimaginable disaster.

Debuting on HBO in May, the five-part miniseries stars Jared Harris (“The Crown”; EmmyÒ nominee for “Mad Men”), Stellan Skarsgård (“Melancholia,” “Good Will Hunting”) and Emily Watson (OscarÒ nominee for “Hilary and Jackie” and “Breaking the Waves”).

CHERNOBYL was written and executive produced by Craig Mazin (“The Huntsman: Winter’s War”) and directed by Johan Renck (“Breaking Bad”). Produced by Sister Pictures and The Mighty Mint as an HBO/Sky co-production. Carolyn Strauss (Emmy® winner for “Game of Thrones”) and Jane Featherstone (“Broadchurch”) executive produce; Johan Renck and Chris Fry (“Humans”) co-executive produce; Sanne Wohlenberg (“Black Mirror”) produces.

Photos: Jared Harris as Valery Legasov; Jessie Buckley as Lyudmilla Ignatenko (Credit for both: Liam Daniel/HBO). Please note these are promotional photos for press use only.

On April 26, 1986, the Chernobyl Nuclear Power Plant in Ukraine, Soviet Union suffered a massive explosion that released radioactive material across Belarus, Russia and Ukraine and as far as Scandinavia and western Europe.

Jared Harris portrays Valery Legasov, a leading Soviet nuclear physicist. As part of the response team, he is one of the first to grasp the scope of the unparalleled disaster that has occurred.

Stellan Skarsgård plays Soviet Deputy Prime Minister Boris Shcherbina, who is assigned by the Kremlin to lead the government commission on Chernobyl in the hours immediately following the accident.

Emily Watson portrays Ulana Khomyuk, a Soviet nuclear physicist committed to solving the mystery of what led to the Chernobyl disaster.

Photo: Stellan Skarsgard as Boris Shcherbina (Credit: Liam Daniel/HBO). Please note this is a promotional photo for press use only.

The miniseries also stars: Paul Ritter (“Lovesick”) as Chernobyl deputy chief engineer Anatoly Dyatlov; Jessie Buckley (“Beast”) as Lyudmilla Ignatenko, a Pripyat resident married to a firefighter on the first response team; Adrian Rawlins (“Harry Potter and the Deathly Hallows”) as Chernobyl chief engineer Nikolai Fomin; and Con O’Neill (“Harlots”) as plant director Viktor Bryukhanov.

The cast also includes: Sam Troughton (“The Ritual”), Adam Nagaitis (“The Terror”), Barry Keoghan (“Dunkirk”), Ralph Ineson (“Harry Potter and the Half-Blood Prince”), Mark Lewis Jones (“Star Wars: Episode VIII — The Last Jedi”), Fares Fares (HBO’s “Westworld”) and David Dencik (“McMafia”).

The miniseries was filmed on location in Vilnius, Lithuania, with a creative team including: director of photography Jakob Ihre (“Thelma”); production designer Luke Hull (“Howards End”); editors Jinx Godfrey (“The Theory of Everything”) and Simon Smith (“Endeavor”); costume designer Odile Dicks-Mireaux (“Brooklyn”); casting directors Nina Gold and Robert Sterne (both two-time Emmy® winners for HBO’s “Game of Thrones”); and composer Hildur Guðnadóttir (“Trapped”).

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