Samuel Joseph Mozes, known as Seph, is the transgender son of Emmy Award-winning actress Cynthia Nixon and her former partner Danny Mozes. Born in November 1996 in New York, Seph came out as transgender in 2018 after graduating from the University of Chicago. He is widely recognised for his mother’s public and unwavering support.
Quick Bio Table
| Detail | Information |
| Full Name | Samuel Joseph Mozes |
| Nickname | Seph |
| Date of Birth | November 1996 |
| Birthplace | New York, USA |
| Gender Identity | Transgender (Male) |
| Birth Name | Samantha Mozes |
| Mother | Cynthia Nixon |
| Father | Danny Mozes |
| Siblings | Charles Ezekiel Mozes, Max Ellington Nixon-Marinoni |
| Education | University of Chicago (Graduated June 2018) |
| Career | Theatre (Assistant Director) |
| Nationality | American |
Who Is Samuel Joseph Mozes?
Samuel Joseph Mozes — widely known by his nickname Seph — is the eldest child of celebrated American actress Cynthia Nixon, best known for her iconic role as Miranda Hobbes in Sex and the City. Seph was born in November 1996 in New York and grew up in the public eye, though his family worked hard to protect his privacy throughout his childhood and teenage years.
Seph’s story became a powerful symbol of family love and LGBTQ+ acceptance when his mother publicly shared his transgender identity in June 2018. That moment, tied to Trans Day of Action, resonated with millions around the world and placed Seph at the centre of a wider cultural conversation about identity, courage, and parental support.
The Early Life and Childhood of Seph Mozes
Seph grew up in New York City, raised primarily by his mother Cynthia Nixon. His parents, Cynthia and Danny Mozes, were college sweethearts who had been together since 1988. Despite their long relationship, the couple separated in 2003, just a year after the birth of their second son, Charles Ezekiel Mozes.
Growing up in a progressive, arts-centred household in New York City gave Seph exposure to diverse perspectives from a young age. Cynthia Nixon has always been deeply committed to social justice, which undoubtedly shaped the environment in which Seph developed his own identity, values, and voice.
Who Are Seph Mozes’ Parents — Cynthia Nixon and Danny Mozes?
Cynthia Nixon, born on 9 April 1966, is a Tony, Emmy, and Grammy Award-winning actress and a prominent LGBTQ+ activist. She ran for Governor of New York in 2018, the same year Seph came out publicly. Her advocacy work has long included visible support for transgender rights and community empowerment.
Danny Mozes, Seph’s father, was Cynthia Nixon’s long-time partner and college sweetheart. Though Danny has largely stayed out of the spotlight compared to Cynthia, the two co-parented Seph and Charles after their separation. Seph carries his father’s surname — Mozes — which has remained a meaningful part of his identity.
How Did Samuel Joseph Mozes Come Out as Transgender?
The public announcement of Seph’s transgender identity came in June 2018, on the occasion of the 14th Annual Trans Day of Action. Cynthia Nixon posted a photograph of herself alongside Seph at his University of Chicago graduation ceremony, accompanied by a heartfelt caption.
Her words read: “I’m so proud of my son Samuel Joseph Mozes (called Seph) who graduated college this month. I salute him and everyone else marking today’s #TransDayofAction. #TDOA.” This Instagram post was not only a mother’s celebration of her son’s academic achievement but a beautifully timed declaration of unconditional love and public solidarity with the transgender community.
Cynthia Nixon’s Powerful Public Support for Her Son
Cynthia Nixon has consistently spoken about Seph with immense pride. In a 2019 interview at the Tribeca Film Festival, she admitted she had been privately using male pronouns for Seph before the public announcement, saying she felt “really weird using the other pronoun in public.” She described the public response to the news as unexpectedly calm and supportive, calling it evidence of how far society has progressed.
Her vocal advocacy for transgender rights has only intensified following Seph’s coming out. Nixon has used her platform to highlight the disproportionate risks faced by transgender individuals, publicly acknowledging that trans people — particularly transgender youth — face significantly higher rates of violence and discrimination. Her words carry weight precisely because they come from a place of personal experience.
Samuel Joseph Mozes’ Education at the University of Chicago
Seph attended and graduated from the prestigious University of Chicago in June 2018. His graduation coincided, perhaps fittingly, with the Trans Day of Action, a date that gave his public coming-out story an added layer of meaning and social significance.
The University of Chicago is consistently ranked among the top universities in the United States, known for its rigorous academic culture and intellectual depth. Seph’s successful completion of his degree there speaks to his academic dedication and resilience — qualities that have clearly been nurtured by both his upbringing and his own personal journey through identity and self-discovery.
Seph Mozes and His Career in Theatre
After graduating, Seph moved into the world of theatre, working as an assistant director on a production of Shakespeare’s King Lear. This artistic path reflects the creative environment he was raised in, with a mother who has spent decades on stage and screen at the highest level of the performing arts.
Theatre as a career choice also carries symbolic weight for someone whose personal story involves claiming an authentic identity. The stage has long been a space where outsiders find belonging, and Seph’s choice to work behind the scenes in the theatre world suggests both a genuine passion for storytelling and a desire to contribute to the arts in a meaningful, grounded way.
Seph’s Siblings — A Blended and Loving Family
Seph has two brothers. His younger brother Charles Ezekiel Mozes, born in December 2002, is also the son of Cynthia Nixon and Danny Mozes. The brothers share a bond through their New York upbringing and their mother’s very public life in both entertainment and politics.
His youngest brother, Max Ellington Nixon-Marinoni, was born in 2011 from Cynthia Nixon’s relationship with her wife, Christine Marinoni. Cynthia and Christine married in May 2012, and Max grew up in the same blended, supportive household as his older brothers. The family dynamic, though non-traditional, has been consistently portrayed as warm, open, and deeply loving.
Christine Marinoni — Stepmother and LGBTQ+ Advocate
Christine Marinoni, Seph’s stepmother, is an education organiser and LGBTQ+ rights activist in her own right. She and Cynthia Nixon began dating in 2004 and married in May 2012. Christine has been openly supportive of the transgender community and has spoken about the need for continued progress in trans rights, particularly around issues of safety and social inclusion.
Having a stepmother who is both a queer woman and an activist has likely been an affirming presence in Seph’s life. The family unit Seph belongs to — defined by queerness, advocacy, and artistic achievement — represents a progressive model of modern family life that challenges traditional expectations and celebrates difference.
The Cultural Impact of Seph’s Coming Out Story
When Cynthia Nixon announced Seph’s transgender identity in 2018, the response was notable for what it was not — it was largely not controversial. Nixon herself expressed surprise at how much of a “non-event” it turned out to be for the general public, which she framed as a sign of genuine social progress on LGBTQ+ acceptance.
This relatively peaceful reception stands in contrast to the hostile political climate that surrounded transgender rights in the United States at the time. Seph’s story, therefore, became a quiet but powerful counter-narrative — proof that ordinary people are far ahead of divisive political rhetoric when it comes to accepting their LGBTQ+ loved ones.
Transgender Visibility and the Role of Celebrity Families
The public announcement of Seph’s identity belongs to a broader tradition of celebrity parents using their platforms to advance LGBTQ+ visibility. When a well-known figure like Cynthia Nixon openly celebrates her transgender son, it sends a ripple of affirmation to thousands of families navigating similar experiences in private.
Transgender visibility in mainstream media and celebrity culture continues to be a meaningful tool in combating stigma and isolation. For many transgender young people who lack supportive families, seeing a famous, successful woman like Cynthia Nixon express absolute pride in her transgender son can be genuinely life-affirming and even life-saving.
What Seph’s Story Tells Us About Parental Acceptance
Research consistently shows that parental acceptance is one of the most significant protective factors for transgender youth, dramatically reducing rates of depression, anxiety, and suicidal ideation. Cynthia Nixon’s public and private support of Seph is not merely a celebrity story — it is a case study in what unconditional parental love looks like in practice.
Seph has grown into an educated, artistically engaged adult who appears to be living authentically and purposefully. While he maintains a relatively private life compared to his mother, everything about his story speaks to the power of being truly seen and accepted by your family during one of life’s most vulnerable transitions.
Seph Mozes Today — A Private Life with Public Significance
In the years since his coming out, Seph has largely stayed away from the public spotlight. He does not maintain a high-profile social media presence and appears to value his privacy, which both he and his mother have spoken about protecting. This quiet approach is itself a kind of statement — a life lived on one’s own terms, without performance or obligation.
His significance, however, remains public. Seph’s story continues to be cited in discussions about transgender acceptance, family dynamics, and the intersection of celebrity and social advocacy. His identity, and his mother’s support of it, remains a meaningful chapter in the ongoing story of LGBTQ+ rights in America.
Danny Mozes — Father of Seph and Charles
Danny Mozes, Seph’s father, has remained notably private throughout the years of public discussion around his son’s identity. He and Cynthia Nixon were together for approximately 15 years before separating in 2003. Despite the split, the co-parenting arrangement appears to have been functional enough to support both Seph and Charles through their formative years.
Danny’s absence from public discourse around Seph’s transgender identity may reflect his own preferred approach to privacy, or simply a recognition that Cynthia’s public platform was the appropriate vehicle for such an announcement. Either way, both parents appear to have supported their children consistently throughout their lives.
Cynthia Nixon’s Advocacy Work for Transgender Rights
Beyond celebrating Seph, Cynthia Nixon has been an outspoken advocate for transgender rights at a political and policy level. During her 2018 campaign for Governor of New York, she explicitly called for stronger protections for transgender individuals, recognising them as among the most vulnerable members of the LGBTQ+ community.
She has written and spoken publicly about her belief that transgender people face unique and disproportionate challenges, including higher risks of workplace discrimination, housing insecurity, and physical violence. Her advocacy is rooted not only in ideological conviction but in personal love — making her voice both credible and emotionally resonant to audiences across the political spectrum.
Why Samuel Joseph Mozes Remains a Significant Public Figure
Though Seph himself has chosen a private life, the name Samuel Joseph Mozes carries public weight because of what it represents. He stands at the intersection of celebrity, transgender identity, parental love, and social change — a combination that continues to generate interest and discussion years after the original announcement.
His story has been covered by major international publications and continues to appear in discussions about LGBTQ+ family life, transgender visibility, and the role of celebrity in driving social progress. In a media landscape where transgender stories are often told through the lens of tragedy or controversy, Seph’s story offers something rarer and more valuable — a narrative of quiet triumph, love, and authenticity.
Conclusion
The story of Samuel Joseph Mozes, known as Seph, is ultimately a story about family, identity, and the courage it takes to live truthfully. Born in November 1996 to Cynthia Nixon and Danny Mozes, Seph grew up in New York, earned his degree from the University of Chicago, pursued a career in theatre, and came out publicly as transgender in June 2018 — a moment marked not by controversy but by his mother’s extraordinary pride and public love.
His story resonates because it is human at its core. It speaks to any person who has ever needed to be truly seen by someone they love — and found that they were. In a world that often makes life difficult for transgender individuals, Seph’s story is a quiet but powerful reminder of what becomes possible when love and acceptance are given without conditions.
Frequently Asked Questions (FAQs)
Who is Samuel Joseph Mozes?
Samuel Joseph Mozes, nicknamed Seph, is the transgender son of actress Cynthia Nixon and her former partner Danny Mozes. He was born in November 1996 and came out publicly in June 2018.
What is Seph Mozes’ birth name?
Seph was born Samantha Mozes. After coming out as transgender, he adopted the name Samuel Joseph Mozes and goes by the nickname Seph.
Where did Seph Mozes go to university?
Seph graduated from the University of Chicago in June 2018, coinciding with the 14th Annual Trans Day of Action.
Who is Seph Mozes’ mother?
His mother is Cynthia Nixon, the Emmy, Tony, and Grammy Award-winning actress known for Sex and the City and a prominent LGBTQ+ advocate.
How did Cynthia Nixon announce Seph’s transgender identity?
Cynthia Nixon shared the news on Instagram on Trans Day of Action in June 2018, posting a graduation photo of herself and Seph with a proud and celebratory caption.
Does Seph Mozes have siblings?
Yes. He has two brothers — Charles Ezekiel Mozes (born 2002, shared with Danny Mozes) and Max Ellington Nixon-Marinoni (born 2011, Cynthia Nixon’s son with wife Christine Marinoni).
What does Seph Mozes do for work?
After graduating from university, Seph worked as an assistant director on a theatrical production of Shakespeare’s King Lear, reflecting his passion for the performing arts.
