The story is about a man called Ted Mosby who tells his son and daughter and how he met their mother . Ted is played by Josh Radnor and the story is also told by the voice of Bob Saget who plays Ted Mosby in the future year 2030 . In the year 2030 , Ted Mosby ( voiced by Bob Saget ) sits his daughter and son down to tell them the story of how he met their mother .