Counterfeiter /(-f?t`?r)/

Coun·ter·feit·er

Counterfeiter

n.
  1. One who counterfeits; one who copies or imitates; especially, one who copies or forges bank notes or coin; a forger.
    The coin which was corrupted by counterfeiters.
    — Camden.
  2. One who assumes a false appearance or semblance; one who makes false pretenses.
    Counterfeiters of devotion.