Alyson Hannigan on Veronica Mars

I must admit that I don't watch this show. I tried watching it once and it seemed like it should have a slot after That's So Raven on the Disney Channel.

Will I watch Veronica Mars because Hannigan will make a guest appearance? Probably not.

Zap2it.com...

LOS ANGELES (Zap2it.com) On Tuesday, Feb. 22, former "Buffy the Vampire Slayer" star Alyson Hannigan leaves demon-infested Sunnydale behind for the mystery-filled seaside town of Neptune, when she makes a guest appearance on the UPN Tuesday-night cult hit "Veronica Mars." She's currently scheduled for one episode, with a possibility of the role becoming recurring.
Hannigan plays Trina Echolls, the struggling-actress daughter of town resident and movie star Aaron Echolls (Harry Hamlin), and stepdaughter of his wife, Lynn (Lisa Rinna, Hamlin's real-life spouse). This makes Trina the half-sister of Logan Echolls (Jason Dohring), the high-school foe of teen sleuth Veronica (Kristen Bell).

In "Russkie Business," Trina, who was a no-show at the memorial service for Lynn (who apparently committed suicide by jumping off a bridge) suddenly appears, raising new questions about what exactly happened to her stepmother.