The CW Network has issued three pilot orders for iZombie, which comes from Veronica Mars creator Rob Thomas, the Supernatural spin-off entitled Supernatural: Tribes and the Arrow spin-off The Flash. All three projects were expected to get pilot orders, with the network making it official today.

We first reported on iZombie back in November, when it was revealed that Rob Thomas is writing the pilot script with his Veronica Mars movie co-writer Diane Ruggiero.

The story is based on the Vertigo Comics title created by Chris Roberson and Michael Allred, which centers on a young female medical student who is turned into a zombie. After taking a coroner's office job to get access to human brains, the zombie realizes that she is actually ingesting the memories of the recently deceased, leading her to team up with a detective and her medical examiner boss to solve fresh murder cases. The writers are executive producing the pilot alongside Danielle Stokdyk and Dan Etheridge.

The CW's Mark Pedowitz first spoke about the Supernatural spin-off, now entitled Supernatural: Tribes, earlier this month, revealing that the show will be set in Chicago and focus on a new character introduced in a back-door pilot, which means it will debut as a regular episode of Supernatural later this season.

The network executive also said this month that the Winchester Brothers (Jared Padalecki and Jensen Ackles) will appear in the pilot, although they won't appear in the series, since their flagship program Supernatural will likely be picked up for Season 10.

Supernatural writer Andrew Dabb wrote the pilot script and will executive produce alongside Eric Kripke, showrunner Jeremy Carver, McG and Robert Singer, who is directing the pilot episode.

Finally, The Flash pilot was essentially announced in November, when The CW revealed that the spin-off will get a traditional pilot. The original plan was to introduce Barry Allen (Grant Gustin) in two episodes of Arrow, with a third episode serving as a back-door pilot. However, after the character debuted in the first two episodes, the decision was made to go with a traditional pilot, to give creators Greg Berlanti, Andrew Kreisberg and Geoff Johns a better chance to flesh out the speedy superhero's origin and the world he inhabits. Jesse L. Martin, Danielle Panabaker and Rick Cosnett are co-starring in the pilot, which David Nutter is slated to direct.