After several weeks of guessing, I'm finally happy to report that ABC has announced launch dates for the three new drama series it will launch this spring: Castle, Cupid, and The Unusuals.

First up is Castle, starring Desperate Housewives' Nathan Fillion (though he'll always be Firefly's Mal to me), which launches Monday, March 9th at 10 pm. Fillion stars as mystery novelist Richard Castle who is called in to assist the NYPD with a series of homicides that seem virtually recreated from scenes within his own novels. Series also stars Stana Katic, Susan Sullivan, Molly Quinn, Ruben Santiago-Hudson, Tamala Jones, Jon Huertas, and Seamus Dever.

Rob Thomas' Cupid, starring Bobby Cannavale and Sarah Paulson, launches Tuesday, March 24th at 10 pm. Cannavale stars as Trevor Hale, a man who claims to be the Roman god of love exiled to Earth until he can make 100 mortal couples fall in love; Paulson plays a psychiatrist and self-help author assigned to keep an eye on Trevor. Will there be sparks? Rick Gomez and Camille Guaty also star.

Lastly, The Unusuals will bow Wednesday, April 8th at 10 pm. The ensemble cast of this quirky police drama includes Amber Tamblyn, Jeremy Renner, Harold Perrineau, Adam Goldberg, Kai Lennox, Monique Curnen, Terry Kinney, and Joshua Close. (If my earlier reports didn't tip you off, I'm already a fan of this quirky and suspenseful series, which blends together mystery, comedy, and drama with some seemingly supernatural elements.)

Stay tuned.