Kieran Culkin achieved enormous acclaim as Roman Roy in HBO's Succession, but his arrival among television's most celebrated actors was anything but sudden. By the time the dysfunctional Roy family began fighting over money, power and their father's approval, Culkin had already spent decades acting in movies, television and theater. His career began as a child alongside his older brother Macaulay Culkin, developed through acclaimed independent films such as Igby Goes Down, and included the wonderfully deadpan Wallace Wells in Scott Pilgrim vs. the World. Roman Roy may have transformed Culkin into an Emmy-winning leading man, but there was a great deal of work behind him before Waystar Royco entered the picture.

Kieran Kyle Culkin was born on September 30, 1982, in New York City into a family that became unusually familiar with the entertainment business. His father, Christopher “Kit” Culkin, had worked as a stage actor, and several of Kieran's siblings became performers. The most famous was his older brother Macaulay, whose enormous success in Home Alone made him one of the world's best-known child actors. Kieran's own screen career began in that very film, although audiences could have been forgiven for overlooking him amid burglars, paint cans and an eight-year-old defending suburban Chicago like a heavily fortified medieval kingdom.

In the 1990 comedy Home Alone, Kieran played Fuller McCallister, Kevin McCallister's younger cousin—the bespectacled child whose fondness for Pepsi caused considerable concern about sleeping arrangements. It was a small role, but Kieran returned as Fuller in Home Alone 2: Lost in New York. Meanwhile, his own career was developing independently of his brother's spectacular rise to fame. He appeared in Father of the Bride as Matty Banks, younger brother of the bride played by Kimberly Williams, and returned for Father of the Bride Part II.

Other childhood roles followed in films including Nowhere to Run, My Summer Story and The Mighty. Culkin therefore accumulated considerable professional experience before reaching adulthood, but unlike many former child actors, he managed to make the transition into increasingly complicated adult characters without being permanently trapped by an early signature role. Perhaps it helped that Fuller McCallister never received a gritty eight-part streaming reboot exploring the psychological consequences of excessive Pepsi consumption.

One of the most important performances of Culkin's early adult career came in Igby Goes Down, the 2002 dark comedy written and directed by Burr Steers. Culkin played Jason “Igby” Slocumb Jr., an intelligent, cynical young man rebelling against his wealthy and deeply troubled family. The cast included Claire Danes, Jeff Goldblum, Amanda Peet, Ryan Phillippe, Bill Pullman and Susan Sarandon. Igby's sarcastic defensiveness and complicated relationship with privilege anticipated, in interesting ways, some of the qualities Culkin would later explore much more ferociously as Roman Roy.

His performance in Igby Goes Down brought significant critical recognition, including a Golden Globe nomination for Best Actor in a Motion Picture – Musical or Comedy. It demonstrated that Culkin could carry a film rather than merely occupy supporting roles and established him as an actor with a particular gift for characters who use humor, sarcasm and hostility to conceal rather less amusing emotions underneath.

Culkin nevertheless did not immediately pursue the conventional path toward Hollywood leading-man status. He worked selectively and spent substantial time in theater, appearing in productions both on and off Broadway. His stage credits included Kenneth Lonergan's This Is Our Youth, a play with which Culkin became closely associated over many years. He eventually appeared in a Broadway production alongside Michael Cera and Tavi Gevinson. Theater provided Culkin with opportunities to develop away from the machinery of Hollywood and became an important part of a career that never seemed particularly interested in following a predictable route.

Movie audiences received another memorable dose of Culkin in Edgar Wright's 2010 adaptation of Scott Pilgrim vs. the World. He played Wallace Wells, Scott's gay roommate, confidant and frequent supplier of brutally efficient observations. Michael Cera's Scott spends the film battling the seven evil exes of Ramona Flowers, while Wallace largely watches the chaos unfold with the expression of a man who cannot quite believe he has to share an apartment with this person. Culkin's dry delivery made Wallace one of the film's standout supporting characters despite the movie being crowded with colorful performances, elaborate fight sequences and enough video-game references to exhaust an arcade.

Scott Pilgrim vs. the World initially produced disappointing theatrical box-office results but developed a passionate following in the years that followed. Culkin later returned to the character when much of the original cast reunited for the animated Netflix series Scott Pilgrim Takes Off. By then, however, his career had been transformed by a family considerably richer and more dysfunctional than anything Wallace Wells had been required to tolerate.

HBO premiered Succession in 2018, created by Jesse Armstrong and centered upon media billionaire Logan Roy and his four children. Brian Cox played Logan, with Jeremy Strong as Kendall, Sarah Snook as Shiv, Alan Ruck as Connor and Culkin as Roman. The series followed the family's vicious maneuvering over control of the Waystar Royco media empire while examining wealth, power, family loyalty and the peculiar emotional damage that can occur when affection becomes another commodity to be negotiated.

Roman Roy initially appeared to be the least serious of Logan's children. He was crude, impulsive, perpetually inappropriate and capable of transforming almost any conversation into something that would cause a human-resources department to quietly lock its doors. Culkin made Roman extremely funny, but the performance gradually revealed the insecurity underneath the character's swagger. Roman desperately wanted his father's respect while simultaneously fearing him, and his constant joking frequently functioned as armor against humiliation and emotional vulnerability.

As Succession developed, Culkin's performance became increasingly central to the series. Roman could be cruel, childish and appalling, sometimes within the same conversation, yet Culkin found flashes of vulnerability without attempting to excuse the character's behavior. His chemistry with Sarah Snook was particularly effective, capturing the competitive affection between Roman and Shiv, while his scenes with Brian Cox exposed the deeply uncomfortable mixture of fear, love and dependency defining Roman's relationship with Logan.

The series became one of HBO's most acclaimed dramas and accumulated major awards throughout its four-season run. Culkin received multiple Emmy nominations for playing Roman, initially in the supporting actor category. For the final season, he competed as a lead actor and won the Primetime Emmy Award for Outstanding Lead Actor in a Drama Series. He also received a Golden Globe and Critics Choice Award for his performance. The recognition marked the culmination of a role that had transformed him from a respected character actor into one of television's most prominent performers.

Culkin's work after Succession demonstrated that Roman Roy was not going to become an occupational prison. He starred opposite Jesse Eisenberg in A Real Pain, written and directed by Eisenberg. Culkin played Benji Kaplan, who travels through Poland with his cousin David as they explore their Jewish family history and honor their late grandmother. Benji's charisma, unpredictability and emotional volatility gave Culkin another complicated character to inhabit, but one very different from Roman's corrosive privilege.

The performance brought Culkin extraordinary awards success. He won the Academy Award for Best Supporting Actor for A Real Pain, along with the Golden Globe, BAFTA and Screen Actors Guild Award. The achievement placed an Oscar beside the Emmy recognition he had received for Succession and confirmed that the enormous attention surrounding Roman Roy had not been dependent upon one particularly well-written television character.

His acceptance speeches also became something of an entertainment category themselves. Culkin's conversational, frequently unpredictable approach to awards ceremonies often sounded less like a carefully rehearsed Hollywood speech and more like somebody remembering halfway through dinner that several thousand people were listening. That spontaneity matched the quality audiences had come to appreciate in his performances: even tightly scripted dialogue could sound as though the thought had occurred to him only seconds earlier.

Away from acting, Culkin married Jazz Charton in 2013, and the couple have children together. He has generally maintained a relatively private personal life despite growing up in a family subjected to extraordinary media attention. His interviews frequently display a dry sense of humor similar to the comic instincts visible in his work, although without Roman Roy's unfortunate tendency to turn every family gathering into grounds for litigation.

Kieran Culkin's career provides an unusual example of a child actor reaching his greatest professional recognition decades after his first appearance on screen. He began in a movie dominated by his enormously famous older brother, steadily developed an identity entirely separate from that association and spent years moving between film and theater before Succession brought him worldwide acclaim.

Roman Roy remains an unforgettable character because Culkin made him more than the family's resident provocateur. Beneath the obscene jokes, arrogance and reckless behavior was someone constantly searching for approval he could never reliably obtain. Culkin could make Roman hilarious in one moment and painfully exposed in the next, sometimes without noticeably changing his expression. That balancing act helped make Succession such compelling television and ultimately brought him an Emmy.

Then A Real Pain brought an Academy Award, adding another remarkable chapter to a career that began with a few lines in Home Alone. From Fuller McCallister worrying everyone with Pepsi to Roman Roy worrying everyone with practically everything, Kieran Culkin has traveled an impressively strange road—and somehow turned being the sarcastic fellow standing slightly off-center into the route to Hollywood's biggest stages.