Guillaume Rumiel, whose full professional name is Guillaume Rumiel Braun, is a French-American actor with experience across film, television, and theatre. He is also part of a notably creative family: his professional biography identifies actor and designer Craig Braun as his father, Succession star Nicholas Braun as one of his brothers, and musician Chris Braun as another.

That family connection helps explain some of the interest in Guillaume’s name, particularly among viewers searching for information about Nicholas Braun’s relatives. Yet Guillaume has an acting record of his own. His publicly documented credits include Pasolini, Les Vacances du Petit Nicolas, Welcome to New York, Playing Dead and La croisière. More recently, he appeared in the 2025 short film Inferno in Paris, according to the Beverly Hills Film Festival.

Unlike many celebrity relatives, Guillaume maintains his own professional presence as an actor. His current biography describes him as a French-American actor based in Paris who has returned his attention to acting after spending roughly a decade focused on family business and other responsibilities.

Quick Bio

Field	Details

Full Name

Guillaume Rumiel Braun

Known For

Film, television and theatre acting; brother of actor Nicholas Braun

Profession/Public Role

Actor

Nationality/Citizenship

French and American

Father

Craig Braun

Brother

Nicholas Braun, actor

Other Publicly Named Brother

Chris Braun, musician

Professional Base

Paris, France

Acting Training

Cours Florent in Paris; Meisner-based training in New York; later studied with Jean-Laurent Cochet

Selected Films

Pasolini, Les Vacances du Petit Nicolas, Welcome to New York, Je fais le mort

Recent Verified Work

Cast member of the 2025 short film Inferno in Paris

Age/Date of Birth

Not reliably confirmed by sufficiently consistent public evidence

Net Worth

No independently verified figure publicly available

Guillaume’s current acting website primarily supports the professional and family details above, with screen credits independently reflected in entertainment databases and by the Beverly Hills Film Festival.

Who Is Guillaume Rumiel?

Guillaume Rumiel Braun is an actor whose career has developed largely in France while also reflecting his American family background. His professional website describes him as both French and American and says he is based in Paris. He has worked in film and theatre and has pursued acting training in both Paris and New York.

For English-language audiences, however, his surname increasingly attracts attention because of Nicholas Braun. Nicholas became internationally recognizable as Greg Hirsch in HBO’s Succession, and that prominence has naturally led viewers to search for members of the Braun family.

Guillaume should not be described simply as a private brother who became searchable because of someone else’s fame. His own film credits and theatre experience establish an independent professional identity. TV Guide, for example, lists him as an actor and credits him as the Interviewer in Pasolini, a journalist in Les Vacances du Petit Nicolas, and a driver in Welcome to New York.

Is Guillaume Rumiel Related to Nicholas Braun?

Yes. Guillaume’s own professional biography explicitly identifies Nicholas Braun as his brother. The same biography identifies Craig Braun as Guillaume’s father and Chris Braun as another brother, describing the family as creatively involved in acting, design, and music.

Some secondary online sources use the more specific term “half-brother” when explaining Guillaume’s relationship to Nicholas. Guillaume’s current first-party biography uses “brothers.” Hence, the safest wording for a fact-focused profile is that Guillaume and Nicholas Braun are brothers rather than making the more specific family distinction central to the story.

That distinction matters editorially. Family relationships are frequently copied from one celebrity database to another, sometimes without clear sourcing. Guillaume’s own professional biography is the stronger source for establishing the basic relationship.

Guillaume Rumiel’s Acting Training

Guillaume’s path into acting involved formal training rather than only exposure through family.

According to his professional biography, he studied at Cours Florent in Paris, one of France’s established drama schools. He later trained in New York, where he worked with the Meisner technique. He also says that an encounter with French actor and director Jean-Claude Brialy eventually led him to study with acting teacher Jean-Laurent Cochet.

His biography connects this classical training with stage performances involving works by writers including Victor Hugo, Sacha Guitry, Jean Racine and Alfred de Musset. Guillaume also says he trained in physical expression and dance, suggesting an approach to performance that extends beyond screen acting alone.

This theatre foundation provides useful context because a short filmography can otherwise make a working actor’s career seem more limited than it is. Guillaume’s public profile includes stage work, performance development, and creative production, along with conventional movie credits.

Movies and Screen Credits

Guillaume Rumiel has appeared in several French and international productions.

One of his better-documented screen appearances is Abel Ferrara’s Pasolini, in which TV Guide credits him as an interviewer. He also appeared as a journalist in Laurent Tirard’s Les Vacances du Petit Nicolas and as a driver in Ferrara’s Welcome to New York.

IMDb’s current profile for Guillaume Rumiel Braun also associates him with Playing Dead and La croisière, while a character credit for Playing Dead identifies his role as Damien Dufour, the court clerk.

His own website highlights Pasolini, Les Vacances du Petit Nicolas, and Jean-Paul Salomé’s Je fais le mort among the films audiences may have seen him in.

These are not presented as leading Hollywood-star credits, nor should they be exaggerated into something they are not. They nevertheless establish that Guillaume’s connection to entertainment is professional and documented rather than simply a consequence of being related to Nicholas Braun.

Theatre, Performance and Les Élégances

Guillaume’s creative work has also extended into theatre and performance projects.

His professional biography says his interest in the Belle Époque, the 1930s and men’s fashion inspired him to create Les Élégances, through which he produced video material and theatrical performances. He also identifies working as master of ceremonies for Christian Louboutin’s Les Loubi’s Angels cabaret in Cannes as a memorable professional experience.

This part of his background helps explain why descriptions limited to “Nicholas Braun’s brother” are incomplete. Guillaume has combined acting with an interest in historical style, live performance, and visual presentation.

His public career therefore sits at the intersection of acting and other performance-oriented creative work rather than following the conventional path of a performer known primarily through mainstream film or television roles.

His Recent Return to Acting

One of the most useful updates in Guillaume Rumiel’s current public biography is his statement that he spent around a decade focusing on family business and other responsibilities before returning to acting.

Recent evidence supports that return.

The Beverly Hills Film Festival lists Guillaume Rumiel Braun among the cast of Quentin Dupuy’s 2025 short film Inferno in Paris. The festival describes the France-US production as a 14-minute drama/fantasy short and names Tora Kim and Guillaume Rumiel Braun among its cast.

That credit matters because many older online profiles stop around his early-2010s work. For someone searching Guillaume’s name today, Inferno in Paris provides stronger evidence of his recent professional activity than recycled celebrity biographies relying solely on older filmographies.

Guillaume Rumiel and the Braun Family’s Creative Background

Guillaume’s family connection is notable because acting is not limited to one Braun sibling.

His professional website identifies his father, Craig Braun, as an actor and designer. It names Nicholas Braun as an actor and Chris Braun as a musician. Guillaume presents those careers as part of a wider creative family background.

Nicholas, of course, is the most internationally visible member of that group today, especially because of Succession. That difference in fame can make searches for Guillaume look like celebrity-family curiosity, but the available evidence shows that Guillaume developed his own performing career and professional training.

It is therefore more accurate to describe him as an actor who is also Nicholas Braun’s brother, rather than only “Nicholas Braun’s brother.”

What Is Known About Guillaume Rumiel’s Age?

No sufficiently reliable, consistent date of birth is publicly established in the strongest sources reviewed for this profile.

For that reason, CelebStar.co.uk should not calculate Guillaume Rumiel’s age or attach an exact birthday to him without stronger documentation.

Actor databases and casting pages can contain self-entered, outdated, or inconsistent information. When a person’s official biography does not publish a birth date, and corroboration is weak, leaving the detail unconfirmed is more responsible than turning an uncertain entry into a supposed fact.

Is Guillaume Rumiel Married?

Guillaume Rumiel’s current relationship or marital status is not publicly confirmed by the reliable professional sources used for this article.

His professional biography focuses on acting, training, creative projects and family connections rather than his romantic life. There is therefore no editorial reason to speculate about a spouse, partner or private relationship.

The same principle applies to children and other private family circumstances: do not fill the absence of public information with assumptions.

Guillaume Rumiel’s Net Worth

No independently verified public figure exists for Guillaume Rumiel Braun’s net worth.

His film and theatre work can be documented, but that does not provide enough evidence to calculate personal wealth. Actor salaries, investments, property holdings, debts, and other financial details required for a responsible net-worth assessment are not publicly established.

Any precise figure presented without that evidence should be treated as an estimate rather than fact. For a privacy-safe biography, the more accurate answer is simply that Guillaume Rumiel’s net worth has not been reliably verified.

What Is the Latest Verified Information About Guillaume Rumiel?

The clearest current picture comes from two public sources.

First, Guillaume’s active professional biography describes him as a French-American actor based in Paris who is returning to acting after a lengthy period focused on family responsibilities.

Second, the Beverly Hills Film Festival documents his involvement in the 2025 short Inferno in Paris. Together, these sources indicate that acting remains an active part of his professional life rather than merely a historical occupation.

Reliable evidence is insufficient to make additional claims about his current private life, finances, or relationships, and those areas should remain separate from what his professional record establishes.

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(FAQs)

Who is Guillaume Rumiel?

Guillaume Rumiel Braun is a French-American actor based in Paris. His documented work includes film and theatre, while his professional biography also describes training in Paris and New York.

Is Guillaume Rumiel Nicholas Braun’s brother?

Yes. Guillaume’s own professional website names Succession actor Nicholas Braun as his brother. It also identifies Craig Braun as his father and musician Chris Braun as another brother.

What movies has Guillaume Rumiel appeared in?

His documented screen credits include Pasolini, Les Vacances du Petit Nicolas, Welcome to New York, Playing Dead and La croisière. His official biography additionally highlights Je fais le mort.

What is Guillaume Rumiel doing now?

His current professional biography says he has returned to acting after spending around a decade focused on family business and other responsibilities. A recent verified credit is the 2025 short film Inferno in Paris.

How old is Guillaume Rumiel?

The strongest sources reviewed for this profile do not publicly confirm an exact birth date. Therefore, do not present his age as fact.

What is Guillaume Rumiel’s net worth?

An independently verified net-worth figure is not publicly available. Publishing a precise estimate without reliable financial evidence would be speculative.

Final Thoughts

Guillaume Rumiel is more than a name appearing alongside Nicholas Braun in family searches. Verified sources establish Guillaume Rumiel Braun as a French-American actor with formal training, theatre experience, and film credits of his own. At the same time, his professional biography confirms that Nicholas Braun is his brother and Craig Braun is his father.

His screen work includes Pasolini, Les Vacances du Petit Nicolas and Welcome to New York, and the 2025 short Inferno in Paris provides recent evidence of his return to acting.

At the same time, important personal details—including a reliably verified date of birth, current relationship status and net worth—remain either private or insufficiently documented. Keeping those gaps visible rather than filling them with unsupported claims gives a more accurate picture of Guillaume Rumiel. It separates his genuine professional story from the speculative celebrity biographies that can surround lesser-known members of famous families.