An anime based on the show "Supernatural" is set to be released July 26 2011 directly to DVD instead of being immediately broadcast on television, according to Flickdirect.com.
Supernatural: The Anime (CW Network) will be 22 episodes long concentrating on the 1st and 2nd seasons of the tv show with both leading actors doing the voices for the characters.
From the press release about the series:
Supernatural: The Anime Series revisits the Winchester brothers' journey down the backroads of America as they search for clues to their father's disappearance, hunt down the supernatural in all its unearthly forms, and enter into the unexpected mystery of their destinies.
The Supernatural anime episodes mirror the story arc of the series' first two seasons, providing supplemental stories ranging from prequels and spin-offs to untold tales that fit within the Supernatural mythology.