Benedict Arnold
Brutus
Judas
Judas Iscariot
Machiavellian
Quisling
archtraitor
betrayer
cockatrice
coconspirator
conniver
conspirator
conspirer
contriver
counterplotter
double agent
double-crosser
double-dealer
exploiter
finagler
informer
intrigant
intriguer
machinator
maneuverer
operator
opportunist
quisling
rat
schemer
serpent
snake
timeserver
traitor
treasonist
trimmer
turncoat
wire-puller
clerk
instrument
accomplice
assassin
burglar
impostor
kidnapper
liar
perpetrator
printer
processor
trickster
Potter
Trotter
blotter
cotter
dotter
hotter
imprimatur
mater
otter
potter
rotter
saltwater
spotter
squatter
totter
trotter
yachter