Preview images for the Supernatural episode titled Bloodlines which could spawn a spin-off series

April 29 brings us the Supernatural episode “Bloodlines,” which could lead into a spin-off series featuring some newly-introduced characters if it goes well.

Here are the new pics, which don’t feature a lot of the new characters but there are a lot of photos, at least:

SUPERNATURAL ◄ Back Next ► Picture 1 of 21 Supernatural -- "Bloodlines" -- Image SN920d_0377 -- Pictured (L-R): Jensen Ackles as Dean and Jared Padalecki as Sam -- Credit: Katie Yu/The CW -- © 2014 The CW Network, LLC. All Rights Reserved

Here’s how The CW describes the episode: