The one DC Comics TV pilot I have not seen yet is the one for iZombie… it's also the one that missed it's screening scheduled for Comic-Con due to recasting. Well, this appears to be the answer to who was being recast. In the pilot, there was a regular series role of Peyton played by Alexandra Krosney (Last Man Standing). Peyton is Liv's (Rose McIver) best friend.
Word is now that Krosney is out and the role of Peyton has been changed to recurring and recast with actress Aly Michalka (Easy A) stepping in.
iZombie is a supernatural crime procedural that centers on med student-turned-zombie Olivia "Liv" Moore (Rose McIver), who takes a job in the coroner's office to gain access to the brains she must reluctantly eat to maintain her humanity. But with each brain she consumes, she inherits the corpse's memories. With the help of her medical examiner boss and a police detective, she solves homicide cases in order to quiet the disturbing voices in her head.