Casey Affleck – Biography, Movies, Net Worth and Family

Casey Affleck is an American actor and filmmaker best known for his deeply moving, Oscar-winning performance in Manchester by the Sea. As the younger brother of Ben Affleck, he has built a career in independent cinema, taking on roles in films like Interstellar and Oppenheimer.

What Movies Has Casey Affleck Been In? A Complete Filmography

• Casey Affleck is best known for his Oscar-winning performance in Manchester by the Sea (2016).
• He frequently collaborates with director David Lowery and has appeared in high-profile films like Interstellar and Oppenheimer.
• Despite being the younger brother of Ben Affleck, Casey has carved out a distinct career in independent cinema.
• His net worth is estimated between $25–$30 million, primarily from acting and directing.

Key Films at a Glance

Casey Affleck in Interstellar: Role and Performance

In Christopher Nolan’s Interstellar (2014), Casey Affleck played a minor but memorable role as Tom, the adult son of the lead character. His role involved managing the family farm back on Earth while his father explored distant galaxies.

Casey Affleck in Oppenheimer: Role and Impact

In the 2023 biopic Oppenheimer, Affleck played Boris Pash, a real-life U.S. Army officer who helped oversee security for the Manhattan Project during World War II. The film was directed by Christopher Nolan and grossed over $977 million worldwide.

Most Notable Films and Breakthrough Roles

Affleck’s most famous film is Manchester by the Sea (2016), where he played Lee Chandler, a grieving janitor forced to care for his nephew. The role earned him the Academy Award for Best Actor in 2017. Other key films include The Assassination of Jesse James by the Coward Robert Ford (2007), which earned him a Best Supporting Actor nomination, and A Ghost Story (2017), where he wore a white sheet for much of the film.

Is Casey Affleck Related to Ben Affleck? Family Ties Explained

Yes, Casey Affleck is the younger brother of Ben Affleck, the actor and director best known for Good Will Hunting and Argo. Casey is the younger sibling and has a net worth estimated around $25–30 million, while Ben’s is closer to $150 million.

Casey Affleck and Ben Affleck: Brothers in Hollywood

The two brothers have worked together on several projects, including Good Will Hunting (1997), which Casey co-wrote, and Gone Baby Gone (2007), which Ben directed. Casey also played a role in Ben’s directorial debut with I’m Still Here (2010), a mockumentary about Joaquin Phoenix.

Casey Affleck’s Wife: Summer Phoenix and Their Family

Casey Affleck married Summer Phoenix, an actress and sister of Joaquin Phoenix, on June 3, 2006. The couple had two sons together: Atticus and Indiana (also known as Indiana August). They separated in 2016 and officially divorced on September 15, 2017.

Does Casey Affleck Have Children?

Yes, he has two sons: Atticus Affleck and Indiana (or Indiana August) Affleck. They were born during his marriage to Summer Phoenix.

How Tall Is Casey Affleck and What Is His Net Worth?

Casey Affleck Height: Accurate Measurement

According to multiple sources, Casey Affleck stands 5 feet 9 inches (1.75 m) tall. This height is consistent with what you might expect for a lead actor in Hollywood.

Casey Affleck Net Worth: Estimated Wealth in 2025

Estimates for Casey Affleck’s net worth vary widely. Some sources place it at $25 million, while others suggest $30 million. The fluctuation likely comes from different calculations of his earnings from acting, directing, and any settlements. His brother Ben Affleck’s net worth is much higher at around $150 million.

Age, Birthday, and Birth Name

Casey Affleck was born on August 12, 1975, making him 49 years old as of 2025. His full name at birth was Caleb Casey McGuire Affleck-Boldt, but he is known professionally as Casey Affleck.

Has Casey Affleck Won an Oscar? Awards and Accolades

Oscar Win for Manchester by the Sea

Yes, Casey Affleck won the Academy Award for Best Actor in 2017 for his role in Manchester by the Sea. This was his first Oscar win and came after a previous nomination for Best Supporting Actor in 2008 for The Assassination of Jesse James by the Coward Robert Ford.

Other Major Awards and Nominations

In addition to the Oscar, he won a BAFTA Award for Best Actor in 2017 and a Golden Globe for Best Actor – Drama in the same year. He also won the Gotham Independent Film Award and the Independent Spirit Award for Best Male Lead. In total, he has accumulated 71 award wins and 64 nominations.

Career Timeline

• 1995: First credited role in To Die For
• 1997: Co-wrote and acted in Good Will Hunting (with brother Ben)
• 2007: Nominated for Oscar for The Assassination of Jesse James by the Coward Robert Ford
• 2010: Directorial debut with I’m Still Here
• 2016: Won Oscar for Manchester by the Sea
• 2018: Starred in A Ghost Story and The Old Man & the Gun
• 2023: Portrayed Boris Pash in Oppenheimer

What Is Known and What Remains Unclear

Established Information

• Casey Affleck’s birth date, height, and family relationships are well-documented.
• He won the Academy Award for Best Actor in 2017.
• He was married to Summer Phoenix until their separation in 2016.

Uncertain Areas

• Net worth figures vary widely across sources; estimates range from $25M to $30M.
• Current relationship status: separated but not legally divorced, details are private.
• Exact details of his involvement in future projects are unconfirmed.

Background Context

Casey Affleck’s career is defined by a transition from supporting roles in mainstream hits (Good Will Hunting, Interstellar) to lead roles in critically acclaimed indie dramas (Manchester by the Sea, A Ghost Story). His Oscar win solidified his status as a serious actor, though his career has also been shadowed by personal controversies and a break from acting in the late 2010s. His role in Oppenheimer marked a return to high-profile ensemble films.

Sources & Quotes

“I’m not interested in being a celebrity. I’m interested in making movies.”

Interview with The Guardian, 2017

“He’s one of the most committed actors I’ve ever worked with.”

Kenneth Lonergan (director of Manchester by the Sea)

Official biography from Wikipedia

Summary

Casey Affleck is a critically acclaimed actor whose career-defining performance in Manchester by the Sea earned him the 2017 Academy Award for Best Actor. He has also appeared in major films like Interstellar and Oppenheimer, both directed by Christopher Nolan. Despite personal controversies, he remains a respected figure in independent cinema. His estimated net worth is $25–30 million, and he is 5’9″ tall. He is the younger brother of Ben Affleck.

Frequently Asked Questions