Ted Mosby
Theodore Evelyn Mosby is a fictional character and the main protagonist in the U.S. television sitcom "How I Met Your Mother", portrayed by Josh Radnor. Ted also serves as the show's narrator from the future, voiced by Bob Saget, as he tells his children the "long version" of how he met their mother.
Paul Shaffer
In February 2013, he appeared in an episode of the sitcom "How I Met Your Mother" titled "P.S. I Love You", in which it is revealed that the character of Robin (Cobie Smulders) used to be obsessed with him. The letters "P.S." in the episode title refer to Paul Shaffer.