Austin O'Brien: Danny Madigan in Last Action Hero

Austin O'Brien is the American former child actor best known as Danny Madigan in the 1993 film Last Action Hero. He is the movie-loving boy who is pulled through a screen into Arnold Schwarzenegger’s Jack Slater action world, a role viewers remember for its mix of excitement, skepticism, and comic timing. O'Brien also appeared in The Lawnmower Man and My Girl 2, two early-1990s films that often help viewers identify him. He was born in Eugene, Oregon, on May 11, 1981, and is 45 as of October 2026. Public filmographies show that his acting work became much less frequent after his youth. There is little reliable public information about his later private life, so the most accurate description is that he is a former child actor whose best-known screen work dates to the 1990s. Several unrelated people share the name Austin O'Brien. To confirm that you have the actor, look for credits including Danny Madigan, Peter Parkette, Peter Webb, Last Action Hero, The Lawnmower Man, or My Girl 2.

Who is Austin O'Brien?

Austin O'Brien is an American actor known for playing child roles in early-1990s films. The quickest way to identify him is his role as Danny Madigan opposite Arnold Schwarzenegger in Last Action Hero.

He appeared at a time when Hollywood often centered high-concept stories on child characters: the curious observer, the vulnerable friend, or the young person who sees adult problems differently. O'Brien suited those parts. His screen presence was alert and natural, which made Danny convincing as a kid who knows action movies inside out but is still overwhelmed when their rules become real.

His other recognized credits help place him. In The Lawnmower Man, he played Peter Parkette, a boy caught near the center of the film’s unsettling science-fiction plot. In My Girl 2, he played Peter Webb, a young friend Vada Sultenfuss meets during her trip to Los Angeles. The films are very different in tone, but together they explain why viewers often recognize his face without recalling his name.

O'Brien should not be confused with unrelated people who share his name. Search results can combine actors, athletes, professionals, and social-media profiles, particularly when a page does not include a film title or character credit. References to Danny Madigan, Peter Parkette, Peter Webb, Last Action Hero, The Lawnmower Man, or My Girl 2 identify this Austin O'Brien.

He is commonly described as a former child actor because his most visible work came when he was young and he later stopped appearing frequently in public screen roles. That description reflects his public career, not his private life after acting.

Why people remember him from Last Action Hero

O'Brien’s defining role is Danny Madigan in Last Action Hero, the 1993 action-comedy directed by John McTiernan. Danny is more than a child placed beside the film’s star: he is the audience’s guide to the joke. He knows the conventions of Arnold Schwarzenegger-style action movies, then finds himself living inside one.

Danny begins as a devoted fan of Schwarzenegger’s fictional action hero, Los Angeles detective Jack Slater. A magical ticket sends him into Slater’s latest movie, where blockbuster conventions become literal. Bullets miss the hero at absurdly convenient moments, cars explode spectacularly, and villains follow the heightened logic of an action film. Danny recognizes those patterns because he has watched this kind of movie before.

The role required O'Brien to react to large action scenes while carrying the film’s emotional point of view. Danny is thrilled by the fantasy, but he is not invulnerable. When danger moves from movie logic into the real world, his understanding of the genre gives the story stakes. His friendship with Jack Slater also gives Schwarzenegger a character who works as both a comic partner and a protective adult figure.

Last Action Hero has developed a lasting cult following. The film was initially discussed heavily in relation to the blockbuster competition around its release, but later viewers came to appreciate its self-aware humor, affection for action cinema, and willingness to mock the star image at its center. Danny is essential to that balance: he keeps the movie grounded in the perspective of a kid using movies as an escape.

If you remember a brown-haired boy explaining action-film rules to Schwarzenegger, or insisting that the world around them is a movie, that is Austin O'Brien as Danny Madigan.

Austin O'Brien's other movies and TV appearances

Although Last Action Hero is the credit most closely associated with Austin O'Brien, The Lawnmower Man and My Girl 2 are also useful for identifying him. His better-known work is concentrated in the early and middle part of the 1990s, when he was working regularly as a young performer.

• The Lawnmower Man (1992) — Peter Parkette. O'Brien played Peter, a neighborhood boy connected to the film’s disturbing story about virtual reality, intelligence enhancement, and the increasingly dangerous Jobe Smith.
• Last Action Hero (1993) — Danny Madigan. He played the movie-savvy boy who enters the fictional world of Jack Slater, Schwarzenegger’s action hero.
• My Girl 2 (1994) — Peter Webb. He played Peter, whom Vada meets during her Los Angeles trip while researching the mother she never knew.

The Lawnmower Man is often the first title viewers recall after Last Action Hero because its mood is so different. It is a science-fiction thriller rather than a broad studio adventure, and O'Brien’s Peter is close to the human consequences of the story’s experiments. The film’s early computer-generated imagery also made it visually distinctive at the time.

My Girl 2 is another contrast. The sequel follows Anna Chlumsky’s Vada Sultenfuss as she travels from Pennsylvania to Los Angeles to investigate her late mother’s past. O'Brien’s Peter Webb becomes part of that coming-of-age story. Viewers who remember the first My Girl sometimes overlook the sequel, but it remains one of O'Brien’s most recognizable screen appearances.

Public filmography listings also include television work and later credits, though those roles are less widely remembered than these three films. Credits databases can differ in their treatment of guest appearances, uncredited work, and productions released under alternate titles. When confirming a familiar face, a character name and release year are more useful than a title alone.

For most viewers, the practical identification is simple: O'Brien was the child actor in Last Action Hero, The Lawnmower Man, and My Girl 2.

What happened after his child-acting years?

The public record suggests that Austin O'Brien moved away from frequent, high-profile screen acting after the period in which he was best known. His most visible roles were made when he was a child, and his later credited work did not receive the same mainstream attention as Last Action Hero, The Lawnmower Man, or My Girl 2.

That conclusion is based on the pattern of publicly available screen credits: they are concentrated around his child-acting years, with later appearances becoming less common. It does not establish why he stepped back, whether he pursued work outside entertainment, or how he feels about acting now. Reliable public reporting does not provide a detailed account of those personal questions.

It would be inaccurate to turn the lack of recent publicity into a dramatic story. A performer may stop taking visible screen roles for many reasons, including education, family priorities, another career, a preference for privacy, or fewer acting opportunities. Unless O'Brien has addressed a particular decision himself in a verifiable interview or statement, no specific reason should be assigned.

The same care applies to social-media accounts and fan pages. A profile using his name is not automatically official, and old biographies are often copied between sites without clear sourcing. Established film credits are useful for confirming his identity. Claims about his residence, family, income, current employer, or personal circumstances should not be filled in with guesses because public information appears limited.

The available evidence supports a narrower account: O'Brien had a recognizable run of film work as a young actor and later became much less publicly visible as an actor.

Is Austin O'Brien still acting?

Austin O'Brien does not appear to be publicly active in mainstream screen acting in recent years. His best-known credits remain his 1990s films, and public filmography listings do not show a recent, high-profile run of projects comparable to the work that made him recognizable.

That does not prove that he permanently retired from acting. “Still acting” can mean appearing in major films or television series, taking occasional independent roles, doing voice work, participating in local productions, or maintaining professional training without recent credited releases. Without a current official statement or a clearly documented recent credit, the careful answer is that he does not appear to be publicly active in mainstream screen acting.

Some viewers may be looking for a recent interview, convention appearance, or social-media update. Those can be difficult to verify because former child actors are often discussed on fan sites long after they stop seeking public attention. An old photo, reposted clip, or account using the same name is not proof of a current project.

To confirm the actor’s identity, start with the roles rather than trying to trace his present-day activities. Danny Madigan in Last Action Hero is the strongest identifier, followed by Peter Parkette in The Lawnmower Man and Peter Webb in My Girl 2.

Information about his films is much easier to verify than information about his present-day life. Unless he returns to a credited production or makes a public statement, his public profile is likely to remain centered on the roles he played as a child.

Austin O'Brien facts people commonly look up

Here are the basic facts most often sought by viewers who recognize Austin O'Brien from a 1990s film.

• Full name: Austin O'Brien.
• Nationality: American.
• Birth date: May 11, 1981.
• Birthplace: Eugene, Oregon, United States.
• Age: 45 as of October 2026.
• Best-known role: Danny Madigan in Last Action Hero (1993).
• Other widely recognized film roles: Peter Parkette in The Lawnmower Man (1992) and Peter Webb in My Girl 2 (1994).

His age can cause confusion because many online pages still describe him through the young characters he played. The birth date is the useful reference point: he turned 45 in May 2026. If an age does not match that date, check when the page was last updated.

His birthplace should also be kept separate from the places associated with his films. O'Brien was born in Eugene, Oregon, while My Girl 2 is set largely around Vada’s trip to Los Angeles and Last Action Hero takes place across fictional movie settings and New York. A film location is not evidence of an actor’s hometown.

Name confusion remains a common issue. Austin O'Brien is not a distinctive enough name to identify someone by name alone. Danny Madigan is the most reliable shorthand for the actor because it is both a major role and a distinctive character name.

“Former child actor” is a reasonable description of his public career, but it should not be treated as a claim that he announced a particular retirement. Publicly available information supports the narrower point: he was a working child actor with memorable film roles and has not remained a prominent public screen presence in recent years.

Conclusion

If you are trying to place Austin O'Brien, start with Danny Madigan in Last Action Hero. The Lawnmower Man and My Girl 2 usually confirm the identification. The public record is much stronger on his films than on what he did after acting became less visible. Austin O'Brien, born in Eugene, Oregon, in 1981, was a memorable child performer in several early-1990s films; claims about his private life or reasons for leaving the spotlight are not well supported.

Frequently Asked Questions

Who played Danny Madigan in Last Action Hero?

Austin O'Brien played Danny Madigan in Last Action Hero. Danny is the young action-movie fan transported into the fictional world of Arnold Schwarzenegger’s character, Jack Slater.

How old is Austin O'Brien?

Austin O'Brien was born on May 11, 1981. He is 45 as of October 2026.

What else was Austin O'Brien in?

His most familiar films include The Lawnmower Man (1992), in which he played Peter Parkette, and My Girl 2 (1994), in which he played Peter Webb. He also had other screen credits, but these roles and Last Action Hero are the ones most often associated with him.

Is Austin O'Brien still acting?

He does not appear to be publicly active in mainstream screen acting in recent years. There is no widely reported recent body of work comparable to the films he made as a child, though the lack of recent public credits does not establish why.

Where was Austin O'Brien born?

Austin O'Brien was born in Eugene, Oregon, in the United States. This is biographical information about the actor, not a reference to the settings of his films.