| Alyson Hannigan
|| Trina Echolls
| Date of Birth
|| March 24, 1974
|| Washington, D.C. U.S.
Alyson Hannigan played Trina Echolls in three episodes of Veronica Mars. She is also well known for portraying Willow Rosenberg in Buffy the Vampire Slayer and Lily Aldrin in How I Met You Mother.
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