"Mad Men" introduced Hamm to his now-wife. Osceola appeared in the final episode of the hit series as Clementine, a receptionist Hamm's character comes across during a retreat. Although it's unclear when Hamm and Osceola began dating, they were first spotted out in public in 2017. That January, the stars were seen leaving a coffee shop together in Los Feliz, CA, per photos published by Just Jared.
In March 2019, the pair were also photographed having dinner in Hollywood, as seen in photos obtained by Daily Mail. And a year later, Hamm and Osceola reunited again for a tennis date in May 2020, and Us Weekly confirmed that June that the former costars were an item.
Hamm and Osceola went public with their relationship by making their red carpet debut together at an Oscars viewing party in March 2022. That September, Hamm teased his relationship with Osceola was getting serious. While appearing on "The Howard Stern Show," the star said he feels very "settled" and "comfortable" with his girlfriend and was even thinking about the couple's long-term plans. "It opened up the possibility of being married, having kids, defining a new version of happiness, life, wellness. All that stuff, it sounds hokey and whatever, but it's real," he said. "It's what I'm working for." When Stern noted that Hamm looked like he was in love, the actor responded by saying, "I'm very much so. I am."
Stern said he saw wedding bells in their future, and he was right. On Feb. 27, 2023, People confirmed Hamm and Osceola were headed down the aisle. On June 24, 2023, the couple got married in Big Sur, CA.
