Benedict Arnold
Brutus
Judas
Judas Iscariot
Quisling
Simon
archtraitor
blab
blabber
blabberer
blabbermouth
cockatrice
conniver
conspirator
conspirer
convict
criminal
crook
debaucher
deceiver
defiler
delator
desperado
desperate criminal
despoiler
double agent
double-crosser
double-dealer
felon
fink
fugitive
gallows bird
gangster
gaolbird
informer
intrigant
intriguer
jailbird
lawbreaker
machinator
mobster
narc
nark
outlaw
peacher
plotter
public enemy
quisling
racketeer
adulterer
blackmailer
blasphemer
braggart
caitiff
calumniator
cheaters
deserter
evil-doers
extortioner
forger
kidnapper
miscreants
oppressor
parricide
pettifogger
poisoner
poltroon
seducer
slanderer
supplanter
time-servers
timeserver
whiner