Zombies Liv (Rose McIver) and Blaine (David Anders) are shown eating brains in almost every episode. McIver and Anders have repeatedly stated in interviews that the "brains" are made out of gelatin and have a very unpleasant taste; both actors have stated that they use spit buckets after each brain-eating scene.
The main character's name, Olivia "Liv" Moore, is a pun on her zombie status (she gets to "live more" after her death).
It is a loose adaptation of the comic book series of the same name created by Chris Roberson and Mike Allred, and published by DC Comics' Vertigo.
In 1.02, Brother, Can You Spare a Brain? (2015), Liv (Rose McIver) gains the ability to paint, thanks to eating a brain. In the comics she already has this talent, and paints what she sees after each meal.
The opening song, "Stop I'm Already Dead", is from the New Orleans band "Deadboy & The Elephantmen". That band was fronted by Dax Riggs of the '90s Metal band Acid Bath. This song can be found on the album "We Are The Night Sky". The song is also featured in the opening scene of another zombie production, Day of the Dead (2008).