A spokeswoman for Mad Men star Jon Hamm says the actor recently completed treatment for alcohol addiction.

Hamm had the support of his longtime partner, actress-filmmaker Jennifer Westfeldt, in his struggle, publicist Annett Wolf said in a statement Tuesday.

The couple asks for privacy and sensitivity, the statement said. No further details were provided.

The disclosure, first reported by the TMZ website, came as the final season of the 1960s-set advertising agency drama begins April 5 on AMC.

The 43-year-old Hamm plays Don Draper, a troubled advertising executive with a dark past. The role brought him stardom and repeated Emmy Award nominations.