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.
Alyson Hannigan
In 2005, Hannigan returned to starring in a regular television series, taking the main role of Lily Aldrin in the hit comedy "How I Met Your Mother", and also playing a recurring guest role on "Veronica Mars" as Trina Echolls. In February 2006, she starred as Julia Jones in "Date Movie", a parody of romantic comedies. She was also a guest star on the ABC animated sitcom "The Goode Family" in 2009.