High Quality Content by WIKIPEDIA articles! The first season of the American television drama series Mad Men premiered on July 19, 2007 and concluded on October 18, 2007. It consisted of thirteen episodes, each running approximately 47 minutes. AMC broadcast the first season on Thursdays at 10:00 pm in the United States. Actors Jon Hamm, Elisabeth Moss, Vincent Kartheiser, January Jones, Christina Hendricks, Bryan Batt, Michael Gladis, Aaron Staton, Rich Sommer, and Maggie Siff receive main cast billing.