Special Guest Stars Adam Arkin as Ethan Zobelle Guest Stars Dayton Callie as Chief Wayne Unser McNally Sagal as Margaret Murphy Jamie McShane as Cameron Hayes Henry Rollins as AJ Weston Callard Harris as Edmond Hayes Co Starring David Labrava as Happy Lowman Josh Latzer as Bounty Hunter Cassandra Braden as Admitting Nurse David Aranovich as ER Doctor Joe Rose as SOA Oregon Leader Caroline Choi as Young Clerical