Matt Damon, Emily Blunt, Cillian Murphy and Florence Pugh attend the U.K. premiere of ‘Oppenheimer’.Photo:Wiktor Szymanowicz/Anadolu Agency/Getty

Wiktor Szymanowicz/Anadolu Agency/Getty
As one of the year’s most highly-anticipated films,Christopher Nolan’sOppenheimeralmost needs no introduction.
Based on the biographyAmerican Prometheusabout J. Robert Oppenheimer, the theoretical physicist who developed the first nuclear weapons during World War II, the epic drama explores his life and his work.
Peaky Blinders’ Cillian Murphy plays the titular character, but he’s just one name in the star-studded cast. Alongside young actors likeFlorence Pugh, Dylan Arnold and Jack Quaid are icons likeRobert Downey Jr.,Emily BluntandMatt Damon.
In fact, Downey Jr.describedOppenheimeras the “best film I’ve ever been in” at the London premiere on July 13, adding, “I cannot wait for you all to experience it."
“This is what a summer blockbuster, when I was growing up, used to be," he continued. “It just kind of, like, changed your life. But again, you know, it’s why Chris Nolan is who he is.”
From their past roles to personal lives, here’s everything to know about the cast ofOppenheimer.
Cillian Murphy as J. Robert Oppenheimer
Cillian Murphy as J. Robert Oppenheimer.Universal Pictures ; Samir Hussein/WireImage

Universal Pictures ; Samir Hussein/WireImage
Hemarried visual artist Yvonne McGuinnessin 2004 after they met in the ’90s, and they lived in London for 14 years before moving to Dublin in 2015. They have two sons, Malachy (born in 2005) and Aran (born in 2007).
Emily Blunt as Katherine “Kitty” Oppenheimer
Emily Blunt as Kitty Oppenheimer.Universal Pictures ; Karwai Tang/WireImage

Universal Pictures ; Karwai Tang/WireImage
Blunt, 40, plays Katherine “Kitty” Oppenheimer, the wife of Murphy’s character. Like her on-screen husband, she had a main role in theA Quiet Placeseries. Blunt is also known for movies likeThe Devil Wears Prada,Salmon Fishing in the Yemen,Mary Poppins ReturnsandThe Girl on the Train.
The London-born actress has been married toThe OfficestarJohn Krasinskisince 2010. The couplehave two daughters, Hazel (born in 2014) and Violet (born in 2016).
Matt Damon as Lieutenant General Leslie Groves
Matt Damon is Leslie Groves in ‘Oppenheimer’.Universal Pictures ; Samir Hussein/WireImage

Damon, 52, plays U.S. military officer Leslie Groves. Damon has starred inGood Will Hunting,TheTalented Mr. Ripley,SavingPrivateRyanandMars, and he also played the titular character in theBournefranchise.
Hemarried Luciana Barrosoin 2005 after they met while he was filmingStuck on Youin 2003. Together, they have four daughters: Isabella, Gia, Stella and Alexia, who is Barroso’s daughter from a previous relationship.
Robert Downey Jr. as Lewis Strauss
Robert Downey Jr. is Lewis Strauss in ‘Oppenheimer’.Pierre Suu/WireImage

Pierre Suu/WireImage
Robert Downey Jr., 58, plays Lewis Strauss, chairman of the U.S. Atomic Energy Commission (AEC) and adversary of Oppenheimer. As Hollywood’s highest-paid actor from 2013 to 2015, perVariety, he might be best known for playingIron Manin the Marvel Cinematic Universe (MCU). He also portrayed Sherlock Holmes in theGuy Ritchiemovie of the same name.
Downeymarried Susan Downey (née Levin)in 2005, and theyhave two kids: a son, Exton, born in 2012, and a daughter, Avri, born in 2014. Downey Jr. was previously married to actress and singer Deborah Falconer from 1992 to 2004 — they have a son, Indio, born in 1993.
Florence Pugh as Jean Tatlock
Florence Pugh is Jean Tatlock.Universal Pictures ; Samir Hussein/WireImage

Pugh, 27, plays psychiatrist Jean Tatlock, who had a relationship with the movie’s titular character. She rose to fame in 2019 after playing Dani inMidsommarand Amy March inLittleWomen. She also had roles inDon’t Worry Darling(alongsideHarry Styles) andTheWonderand starred as Yelena Belova in the MCU movieBlackWidow.
Josh Hartnett as Ernest Lawrence
Josh Hartnett is Ernest Lawrence in ‘Oppenheimer’.Universal Pictures ; Neil Mockford/FilmMagic

Universal Pictures ; Neil Mockford/FilmMagic
Hartnett, 44, plays nuclear physicist Ernest Lawrence. He’s known for his starring roles in war filmsPearl HarborandBlackHawkDown, as well as the rom-com40 Days and 40 Nightsand the dramaO. From 2014 to 2016, he played Ethan Chandler in the Showtime horror seriesPennyDreadful.
He’s been in a relationship with English actressTamsin Egertonsince 2012, and the couplehave three children. He married Egerton in 2021.
Casey Affleck as Boris Pash
Casey Affleck at the 2023 Vanity Fair Oscar Party.Alberto Rodriguez/Variety/Getty

Alberto Rodriguez/Variety/Getty
He marriedSummer Phoenixin 2006 after they dated for six years; her brother,Joaquin, introduced them. Affleck and Phoenix had two sons together, born in 2004 and 2007. However, Phoenix filed for divorce in August 2017, and their divorce was finalized later that year. Since 2021, Affleck has been in a relationship withCaylee Cowan.
Rami Malek as David Hill
Rami Malek attends the ‘Oppenheimer’ U.K. premiere at Odeon Luxe Leicester Square on July 13, 2023.Samir Hussein/WireImage

Samir Hussein/WireImage
Rami Malek, 42, plays experimental physicist David Hill. Malek was born in California to Egyptian parents and is best known for his Emmy-winning role as computer hacker Elliot Alderson in USA Network’sMr. Robot(2015 to 2019). In 2018, he notably portrayedFreddie Mercuryin the 2018 biopicBohemian Rhapsody, for which he won an Oscar, a Golden Globe and a SAG award.
Malek lives a private life but has been in a relationship with hisBohemian RhapsodycostarLucy Boyntonsince 2018.
Kenneth Branagh as Niels Bohr
Kenneth Branagh attends the ‘Oppenheimer’ U.K. Premiere at Odeon Luxe Leicester Square on July 13, 2023, in London, England.Samir Hussein/WireImage

Kenneth Branagh, 62, plays Danish physicist Niels Bohr. The Northern Irish Branagh has directed and starred in many Shakespeare adaptations over the years and was knighted in 2012 for his work in film, according toBBC. In 2002, he won an Emmy for his role as Reinhard Heydrich in the HBO movieConspiracy.
In 2003, Branagh married film art director Lindsay Brunnock, whom he met while shootingShackletonthe year prior. He was previously married toEmma Thompson, though they split in 1995 following his affair withHelena Bonham Carter.
Benny Safdie as Edward Teller
Benny Safdie is Edward Teller in ‘Oppenheimer’.Universal Pictures ; Dimitrios Kambouris/Getty

Universal Pictures ; Dimitrios Kambouris/Getty
Safdie, 37, plays theoretical physicist and “father of the hydrogen bomb” Edward Teller. He’s perhaps best known for working with his brother Josh on movies like 2017’sGood Timeand 2019’sUncutGems.Safdie has also starred inLicoricePizza,Person to PersonandPieces of a Woman.
Benny is married to Ava Safdie, and they have two children together.
Dylan Arnold as Frank Oppenheimer
Dylan Arnold attends the Los Angeles premiere of AMC Networks ‘Anne Rice’s Mayfair Witches’.Gregg DeGuire/FilmMagic

Gregg DeGuire/FilmMagic
Arnold, 29, plays Frank Oppenheimer, the titular character’s younger brother. He’s known for playing Noah in the 2019 romantic dramaAfterand its sequel and Cameron Elam in the 2018 slasherHalloweenand its sequel. However, he might be best known for the role of Theo Engler in the third season of Netflix’sYou.
In 2021, Arnold and hisYoucostarVictoria Pedrettisparked dating rumors when they were spotted running errands together in Los Angeles.
Gustaf Skarsgård as Hans Bethe
Gustaf Skarsgard attending premiere of “It” at TCL Chinese Theatre on Sept. 5, 2017, in Hollywood.Jason LaVeris/FilmMagic

Jason LaVeris/FilmMagic
Skarsgård is in a relationship with Caroline Sjöström. Their daughter was born in November 2020.
David Krumholtz as Isidor Rabi
David Krumholtz attends HBO’s ‘White House Plumbers’ New York Premiere.Michael Loccisano/Getty

Michael Loccisano/Getty
In 2010, he married actressVanessa Brittingafter a two-year engagement. Theyhave a daughter and a sonborn in 2014 and 2016, respectively. In 2011, Krumholtz was diagnosed with thyroid cancer. In May 2021, he celebrated10 years cancer-free.
Matthew Modine as Vannevar Bush
Matthew Modine arrives at the ‘Hard Miles’ world premiere on June 13, 2023.Jason Davis/Getty

Jason Davis/Getty
Matthew Modine, 64, plays Vannevar Bush, the head of the U.S. Office of Scientific Research and Development during World War II. His breakout role was as J.T. “Joker” Davis in the 1987 war dramaFullMetalJacket. In recent years, he’s perhaps more noted for playing Dr. Martin Brenner in Netflix’sStrangerThings.
Emma Dumont as Jackie Oppenheimer
Emma Dumont attends the ‘Locke & Key’ series premiere photo call.Jemal Countess/FilmMagic

Jemal Countess/FilmMagic
Emma Dumont, 28, plays Jackie Oppenheimer, J. Robert Oppenheimer’s sister-in-law. The Seattle-born Dumont is best known for her roles in the ABC Family comedy-dramaBunheads, NBC’s period crime dramaAquariusand FOX’s superhero seriesTheGifted.
Jack Quaid as Richard Feynman
Jack Quaid in ‘Oppenheimer’.Universal Pictures ; ANGELA WEISS/AFP/Getty

Universal Pictures ; ANGELA WEISS/AFP/Getty
Born toMeg RyanandDennis Quaid, Quaid comes from a family of actors. From 2016 to 2021, he was linked to actress Lizzy McGroder. He has been most recently linked to hisTheBoyscostar Claudia Doumit.
Gary Oldman as Harry S. Truman
Gary Oldman attends the 2023 BAFTA Television Awards.Joe Maher/Getty

Joe Maher/Getty
Gary Oldman, 65, plays President Harry S. The London-born actor has been one of the biggest names in Hollywood for over three decades. In recent years, he’s become known for playing Winston Churchill inDarkestHour, George Smiley inTinker Tailor Soldier Spy, and Sirius Black in theHarryPotterfranchise.
He’s been married five times: to Lesley Manville,Uma Thurman, Donya Fiorentino, Alexandra Edenborough and Gisele Schmidt — whom he married in 2017. He has a son with Manville, born in 1988, and two sons with Fiorentino, born in 1997 and 1999.

Amy Sussman/Getty
While filmingJuno,she was in a relationship with costarElliot Page, and in 2014, she marriedDreddcostar Jacques Pienaar.
Tom Conti as Albert Einstein
Tom Conti attends the ‘Oppenheimer’ U.K. Premiere.Karwai Tang/WireImage

Karwai Tang/WireImage
Tom Conti, 81, plays legendary scientist Albert Einstein. The Scottish actor has taken on a wide range of roles throughout his career, winning a Tony Award in 1979 for his role inWhose Life Is It Anyway?and starring in the likes ofReuben, Reuben(for which he was nominated for an Oscar) andThe Dark Knight Rises.
He has been married to actress Kara Wilson since 1967, and they have a daughter, Nina Conti, a comedian and ventriloquist.
Dane DeHaan as Kenneth Nichols
Dane DeHaan visits SAG-AFTRA Foundation to discuss ‘ZeroZeroZero’.Cindy Ord/Getty

Cindy Ord/Getty
Dane DeHaan, 37, plays army officer Kenneth Nichols. He began his acting career in 2008 as an understudy toHaley Joel Osmentin Broadway’sAmericanBuffalobefore landing a role in an episode ofLaw & Order: Special Victims Unit. Since then, he’s appeared in the 2012 superhero thrillerChronicle, the 2013 dramaKill Your Darlingsand the 2014 MCU filmThe Amazing Spider-Man 2.
He married actressAnna Woodin 2012. The pair first met in high school in North Carolina, where he transferred for his senior year, and they also appeared inChronicletogether. They have two children together.
Josh Peck as Kenneth Bainbridge
Josh Peck at the Los Angeles premiere of ‘Paint’.Gilbert Flores/Variety/Getty

Gilbert Flores/Variety/Getty
Josh Peck, 36, plays physicist Kenneth Bainbridge. The N.Y.C.-born actor rose to prominence as a child actor on Nickelodeon, first onTheAmandaShowand then as Josh Nichols alongsideDrake BellinDrake & Josh. In recent years, he’s appeared alongsideJohn Stamosin the FOX sitcomGrandfatheredand has starred in Hulu’sHow I Met Your Father.
Peck marriedPaige O’Brienin June 2017, and the couple have two children together. Their elder son, Max, wasborn in December 2018, and their younger son, Shai,arrived in October 2022.
Alex Wolff as Luis Walter Alvarez
Alex Wolff attends the ‘The Line’ premiere during the 2023 Tribeca Festival.Cindy Ord/Getty

Alex Wolff, 25, plays experimental physicist Luis Walter Alvarez. Like Peck, he rose to fame on Nickelodeon, appearing alongside his brotherNatinThe Naked Brothers Band, which his mother Polly Draper created. The brothers then formed a band, Nat & Alex Wolff, and starred in their mom’s 2018 comedy-dramaStella’s Last Weekend.
Wolff’s mom, Polly, is an actress and writer, while his father is jazz pianist Michael Wolff.
Tony Goldwyn as Gordon Gray
Tony Goldwyn attends the BAFTA Honours Shonda Rhimes Presented By Netflix, Delta Air Lines, And Virgin Atlantic.Jason Mendez/Getty

Jason Mendez/Getty
Tony Goldwyn, 63, plays the attorney and government official Gordon Gray. From 2012 to 2018, he played President Fitzgerald Grant III in the ABC dramaScandaland won a Peabody Award.
He’s been married to Jane Musky since 1987, and the couple have two daughters, Anna and Tess.
source: people.com