Jon Hamm, most famous for starring as the whiskey-swilling, chain-smoking advertising exec Don Draper on Mad Men, recently checked out of rehab for alcohol addiction, according to TMZ.

The 44-year-old actor reportedly completed a 30-day stint at Silver Hill Hospital, a high-end treatment center in New Canaan, Conn., mere days before the final season of Mad Men starts to air on April 5. Filming had wrapped before he entered the facility in late February.

"With the support of his longtime partner Jennifer Westfeldt, Jon Hamm recently completed treatment for his struggle with alcohol addiction,” Hamm's rep told TMZ. “They have asked for privacy and sensitivity going forward."

AMC’s Emmy-winning drama is known for depicting heavy drinking and smoking by its characters, who work in a Madison Avenue ad firm in the 1960s. The show has been critically lauded for offering a more realistic, nuanced picture of alcoholism, particularly among its antihero, Don Draper.

It has also been criticized for glamorizing substance abuse, and encouraging viewers to drink and smoke. “I have read that watching the show makes some people at home want to smoke and drink,” said Hamm in 2012. “I think, well, knock yourself out."