John Mulaney & Olivia Munn: 5 Shocking New Updates On Their Marriage, Second Baby, And Cancer Journey

The whirlwind romance between comedian John Mulaney and actress Olivia Munn has evolved into one of Hollywood's most fascinating and intensely scrutinized relationships, marked by major life events, career triumphs, and personal battles. As of late 2025, the couple has settled into married life and a family of four, all while navigating a high-profile career resurgence for Mulaney and a deeply personal health advocacy journey for Munn.

The latest updates from the power couple confirm they are thriving, balancing their demanding professional lives with the joys and challenges of raising two young children. From a surprise wedding to a new baby via surrogate and an intimate, hilarious proposal story, their story continues to captivate fans who are eager for the freshest details.

John Mulaney and Olivia Munn: Complete Biography Profile

The foundation of their relationship is built on two highly successful, yet vastly different, careers in the entertainment industry. Here is a complete profile of the celebrated couple.

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John Mulaney (Husband)

• Full Name: John Edmund Mulaney
• Born: August 26, 1982 (Age 43 as of December 2025)
• Birth Place: Chicago, Illinois, U.S.
• Profession: Stand-up Comedian, Actor, Writer, Producer
• Notable Work: Writer for Saturday Night Live (2008–2013), stand-up specials like New in Town and Kid Gorgeous, voice acting in Big Mouth.
• Awards: Two-time Emmy Award and WGA Award winner.
• Current Project: Headlining the extended "Mister Whatever Tour" in 2025 and 2026.

Olivia Munn (Wife)

• Full Name: Lisa Olivia Munn
• Born: July 3, 1980 (Age 45 as of December 2025)
• Birth Place: Oklahoma City, Oklahoma, U.S.
• Profession: Actress, Model, Activist
• Notable Work: Hosting G4's Attack of the Show!, roles in HBO's The Newsroom, X-Men: Apocalypse (as Psylocke), and Magic Mike.
• Background: Asian American, with a mother of Chinese descent and a father of German-Irish descent.
• Personal Battle: Luminal B breast cancer survivor and vocal advocate for early detection.

The Relationship Timeline: From Mutual Friends to Marriage and Two Children

Mulaney and Munn’s history dates back to 2013, when they first met at a mutual friend's wedding party. However, their romantic relationship did not begin until 2021, following Mulaney's separation from his previous marriage and his journey through addiction recovery. This quick progression led to intense public interest and speculation, which the couple has largely handled with grace and humor.

1. The Surprise Wedding in 2024

One of the biggest recent revelations is that the couple officially tied the knot. John Mulaney and Olivia Munn got married in a private ceremony at a friend's home in New York in July 2024, after approximately three years of dating. This news came as a pleasant surprise to many fans, confirming their commitment amid a period of significant personal growth for both.

2. Welcoming Daughter Méi June via Surrogate

The couple expanded their family in September 2024 with the birth of their second child, a daughter named Méi June. Méi June was welcomed via a gestational surrogate, a detail Munn has been open about, highlighting the various paths to parenthood. Their first child, son Malcolm Hiệp Mulaney, was born in November 2021. Mulaney has often shared hilarious anecdotes about Malcolm's toddler antics during his stand-up performances, giving fans a glimpse into their family life.

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3. The 'No Diarrhea' Proposal Story

In a moment that perfectly encapsulates their shared sense of humor, Olivia Munn recently revealed the intimate and slightly absurd details of John Mulaney's proposal. She shared that Mulaney popped the question in front of a sign that hilariously read "No Diarrhea" at a private location. Munn admitted she had to commit to a "huge lie" after a friend accidentally revealed Mulaney's plan to her beforehand, making the eventual proposal a funny, memorable moment that defied typical Hollywood romance.

Olivia Munn’s Powerful Advocacy as a Cancer Survivor

Beyond the personal milestones, Olivia Munn has turned her private health battle into a powerful public platform for advocacy, a journey that has defined her recent years and is a major part of their current life together.

4. The Luminal B Breast Cancer Diagnosis

In 2023, Munn revealed she was diagnosed with Luminal B breast cancer, an aggressive and fast-growing subtype. Her diagnosis was a wake-up call, as she had a normal mammogram and clear genetic testing (BRCA mutation test) just a year prior. The cancer was only detected after her doctor utilized a comprehensive Breast Cancer Risk Assessment Tool, which calculated her lifetime risk and recommended further screening.

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5. Advocating for the Risk Assessment Tool

Munn has repeatedly stated that the Breast Cancer Risk Assessment Tool "saved my life," urging other women to speak to their doctors about their own risk scores, even if their mammograms are clear. Her journey included multiple surgeries and led to her having medically induced menopause as part of her treatment plan. Her openness about the process, including the extensive support system of other cancer patients, has made her a prominent and influential activist in the health community, with John Mulaney consistently by her side throughout the ordeal.

What’s Next for the Mulaney-Munn Family?

As the couple moves forward, their professional and personal lives remain intertwined. John Mulaney’s "Mister Whatever Tour" continues to sell out venues across the country, with fans eager to hear his signature blend of observational humor, which now includes tales of fatherhood, marriage, and life with Olivia.

Meanwhile, Olivia Munn is focused on her recovery, family, and acting career, while maintaining her strong voice in breast cancer awareness. The couple’s shared public appearances, such as their stylish attendance at the 2025 Vanity Fair Oscar Party and the 2025 US Open, consistently show them as a united front. Their story is a modern narrative of love, recovery, and resilience, proving that even a whirlwind romance can lead to a deeply committed and enduring partnership.