Answer: SLAYERS

AnswerCrossword Clue
SLAYERSTV's Buffy and Faith, e.g.
SLAYERSSaint George, re the dragon, and others
SLAYERSTV's Buffy and Faith, for two
SLAYERSKnights, at times
SLAYERSDragon killers
SLAYERSThey make heads roll
SLAYERSCriminals.
SLAYERSAssassins.
SLAYERSHolmes's quarry
SLAYERSDavid and others
SLAYERSHit men
SLAYERSAssassins
slayersSLAYER, one who slays (to kill (to put to death))