personnel (n.)
- agent
- alternate
- alternative
- analogy
- backup
- change
- changeling
- comparison
- copy
- counterfeit
- crew
- deputy
- double
- dummy
- equal
- equivalent
- ersatz
- exchange
- fake
- fill-in
- firepower
- force
- forces
- gang
- ghost
- ghostwriter
- hands
- help
- imitation
- makeshift
- men
- metaphor
- metonymy
- phony
- proxy
- relief
- replacement
- representative
- reserves
- retinue
- ringer
- secondary
- sign
- staff
- stand-in
- sub
- substitute
- substitution
- succedaneum
- supplanter
- surrogate
- symbol
- synecdoche
- token
- troops
- understudy
- units
- vicar
- vice-regent