timeserver (n.)
- backscratcher
- backslapper
- betrayer
- bootlicker
- brownie
- careerist
- chameleon
- clawback
- cockatrice
- conspirator
- courtier
- creature
- double-crosser
- double-dealer
- dupe
- egotist
- fawner
- flatterer
- flunky
- groveler
- helot
- hog
- individualist
- informer
- instrument
- intriguer
- jackal
- lackey
- loner
- machinator
- minion
- monopolist
- narcissist
- peon
- plotter
- puppet
- quisling
- rat
- schemer
- self-seeker
- serf
- serpent
- slave
- snake
- spaniel
- stooge
- suck
- sycophant
- temporizer
- toad
- toady
- tool
- traitor
- treasonist
- trimmer
- truckler
- turncoat
- weathercock
- yes-man