Hamm and his former costar John Slattery marked 10 years since the series' finale with a panel at ATX TV Festival and shared some behind-the-scenes secrets

Jon Hamm recently wrapped up what turned out to be a massive hit in Your Friends & Neighbors on AppleTV+, with the debut season finale having aired on May 30. With a significant number of successful starring roles in both movies and television shows under his belt over the past 15 years or so,

When the younger cast told Hamm they "wanted to feel" the burn of real cigarettes, the series star joked, "Let me know how that goes."