Z Nation‘s human/zombie hybrid Murphy may be on the verge of his most dramatic transformation yet.

TVLine has learned exclusively that the producers of Syfy’s undead drama have issued a casting call for Keith Allan’s role of Murphy ahead of Season 3. I’m told the move is related to a contract dispute between Murphy and Z Nation producer The Asylum. The hope is that the conflict will be resolved before production resumes on May 1, rendering a recast unnecessary.

Syfy referred questions about Allan’s status to The Asylum, a rep for which did not respond to our multiple requests for comment. Allan’s personal rep also did not respond to a request for comment.

For its recently concluded second season, Z Nation averaged 1.5 million total viewers per episode (Live +7). It also ranked as Syfy’s most social original series in total social engagements. Season 3 is slated to bow this fall.