 " Roosters " develops plot elements introduced both in " Owls " and in the earlier instalment " The Hand of St. Sebastian " , and would later be followed up by the season 's two @-@ part finale . The episode also features the use of operatic music , a decision praised by the show 's composer Mark Snow . The episode featured guest appearances by Kristen Cloke , Philip Baker Hall and R. G. Armstrong . " Roosters " received a mixed critical reaction , and attracted 5 @.@ 4 percent of the available audience during its initial broadcast . 
