The Dr. Horrible Panel will be on April 14th, including Joss Whedon, Felicia Day ("Penny’), Nathan Fillion ("Captain Hammer’), Jed Whedon (“Bad Horse Chorus #2/Dead Bowie”/Composer/Writer) and Zack Whedon (Executive Producer/Writer).

The Dollhouse panel will be on April 15th. Joss will also be there, along with Eliza Dushku (“Echo”), Enver Gjoka (“Victor”), Fran Kranz (“Topher”), Dichen Lachman (“Sierra”), Harry Lennix (“Boyd”), Tahmoh Penikett (“Paul”), and Olivia Williams (“Adelle”).

Premium ticket packages are available now. Tickets for individual panels will be on sale on February 26th for Paley Center members only, then March 1st to the general public.

Some of the other shows that will be featured include The Mentalist, 90210, The Hills, Battlestar Galactica, Big Love, Desperate Housewives, Fringe, True Blood, and the the final three episodes of Pushing Daisies.

For more information, visit the Paley Center site.