 He has appeared in commercials for companies such as Bud Light, Dairy Queen, Nextel, and Sprint.From 2007 until its ending in 2015, Sommer maintained a regular role on AMC's period drama series "Mad Men" as Harry Crane, a media buyer who becomes head of the television department in a 1960s Madison Avenue ad agency.In 2008, Sommer appeared as a guest star in two episodes of NBC's mockumentary sitcom series "The Office", portraying the role of Alex.