VERONICA STEPS IN WHEN A STUDENT THREATENS TO HUMILIATE HIS GIRLFRIEND ONLINE IF SHE BREAKS UP WITH HIM, ON "VERONICA MARS," TUESDAY, APRIL 26 ON UPN

Harry Hamlin ("L.A. Law") Guest Stars as Aaron Echolls and Tina Majorino ("Napoleon Dynamite") Guest Stars as Mac

Two Original Episodes Until the May 10 Season Finale, Which Will Reveal Who Killed Lilly Kane

"M.A.D." -- When a classmate's boyfriend threatens to post a humiliating video of the girl online if she dumps him, Veronica helps her concoct a scheme to ensure "mutually assured destruction" if he doesn't allow the relationship to end peacefully, on VERONICA MARS, Tuesday, April 26 (9:00-10:00 PM, ET/PT) on UPN. John Kretchmer directed the episode from a script written by John Enbom and Phil Klemmer. Harry Hamlin guest stars as Aaron Echolls and Tina Majorino guest stars as Mac

Meanwhile, Keith begins to search for Duncan after his parents post a huge reward for information on his whereabouts. Later, as her secret new relationship heats up, Veronica learns a disturbing new fact about the night that she was drugged and assaulted.

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
Cliff McCormack: Daran Norris
Mac: Tina Majorino
Aaron Echolls: Harry Hamlin
Dick Casablancas: Ryan Hansen
Alicia: Erica Gimpel
Carmen Ruiz: Natalia Baron
Tad Wilson: Jeff D'Agostino
Mr. Wu: Martin Yu
Felix: Brad Bufanda
Tad's Lackey: Nat McCormick
Loretta Cancun: Ameenah Kaplan
Seth Rafter: Robert Clark
Beaver: Kyle Gallner
Mexican Cop: Juan Monsalvez
Hotel Clerk: Anne Tran
Jerky Dude: Andre Boyer
Clarence Weidman: Christopher B. Duncan

RATING: To Be Announced