Dan or Daniel Seymour may refer to: Dan Seymour (1915–1993), American character actor. Dan Seymour (announcer) (1914–1982), American radio and TV announcer who later became president and chief executive officer of the J. Walter Thompson advertising agency. Daniel Seymour (field hockey) in 2016 Men's Australian Country Championships Daniel Seymour (director) for Cocksucker Blues