VERONICA FINALLY UNCOVERS THE TRUTH BEHIND WHO DRUGGED AND ASSAULTED HER AT A PARTY LAST YEAR, ON "VERONICA MARS," TUESDAY, MAY 3 ON UPN

Harry Hamlin ("L.A. Law") Guest Stars as Aaron Echolls

Last Original Episode Until the May 10 Season Finale, Which Will Reveal Who Killed Lilly Kane

"A Trip to the Dentist" -- Determined to get to the truth behind who drugged and assaulted her at a party the year before, Veronica questions her friends and many rivals about the chain of events that night at Shelley Pomeroy�s house, on VERONICA MARS, Tuesday, May 3 (9:00-10:00 PM, ET/PT) on UPN. Marcos Siega directed the episode from a script by Diane Ruggiero.

Meanwhile, when one of Veronica and Wallace's stunts affects her job at Kane Software, Alicia confronts Keith about his daughter's behavior. Later, in an attempt to get closer to his son, Aaron (guest star Harry Hamlin) throws a birthday party for Logan that inadvertently surprises everyone.

Veronica Mars: Kristen Bell
Keith Mars: Enrico Colantoni
Wallace Fennel: Percy Daggs III
Duncan Kane: Teddy Dunn
Logan Echolls: Jason Dohring
Eli "Weevil" Navarro: Francis Capra
Aaron Echolls: Harry Hamlin
Lianne Mars: Corinne Bohrer
Meg: Alona Tal
Madison Sinclair: Amanda Noret
Dick Casablancas: Ryan Hansen
Celeste Kane: Lisa Thornhill
Clarence Weidman: Christopher B. Duncan
Luke: Sam Huntington
Sean: Kevin Sheridan
Casey: Jonathan Bennett
Beaver: Kyle Gallner
Alicia: Erica Gimpel
Carrie Bishop: Leighton Meester
Shelly Pomroy: Melissa Hoover
Cole: Daniel Bess
Cheyenne: Jennifer Gareis
Waiter: Antonio Jaramillo
Cindy: Billie Jones
Coach: Carl Bresk

RATING: To Be Announced