Olivia Munn Calls John Mulaney a Hands-On Father (Exclusive) [Video]

When life took an unimaginable turn for Olivia Munn last year, a network of friends and family stepped up to support the new mom.

Chief among that close circle was her partner John Mulaney, 41, who was by Munn’s side as she navigated four surgeries, including a double mastectomy, following her bilateral breast cancer diagnosis in April 2023.

“It would’ve felt like climbing an iceberg without him,” Munn, 43, tells PEOPLE in this week’s cover story, opening up about life at home with their son Malcolm, 2.

Munn’s cancer was found thanks to a decision by her OB-GYN during a routine Pap smear to calculate her lifetime breast cancer risk score using a free online tool called a Tyrer-Cuzick risk assessment calculator.

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