From Wikipedia, the free encyclopedia. Joshua Michael "Josh" Radnor (born July 29, 1974, height 6' (1,83 m)) is an American actor, writer and director. He is best known for portraying the main character Ted Mosby on the popular, Emmy Award-winning CBS sitcom How I Met Your Mother. He made his writing and directorial debut with the 2010 comedy-drama film Happythankyoumoreplease, for which won the Sundance Film Festival Audience Award and was nominated the Grand Jury Prize. He is currently producing his second film, entitled Liberal Arts, which he again wrote and directs. Description above from the Wikipedia article Josh Radnor, licensed under CC-BY-SA, full list of contributors on Wikipedia.