List of How I Met Your Mother characters
The main characters are: Ted Mosby, a romantic searching for "The One"; Barney Stinson, a womanizer; Robin Scherbatsky, a journalist who moved to New York in 2005; and Marshall Eriksen and Lily Aldrin, a long-term couple. Although the show is based around The Mother, her first appearance is not until the season eight finale.
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.