1) Double 
A look-alike, or double, is a person who closely resembles another person. In popular Western culture, a look-alike is a person who bears a close physical resemblance to a celebrity, politician or member of royalty. Many look-alikes earn a living by making guest appearances at public events or performing on television or film, playing the person t...
[adj] - resembling closely
adjective resembling closely; `they have look-alike cars`
a person or thing that looks like or closely resembles another; double. · a compatible: The leading brand of computer was expensive so they bought cheap look-alikes. · a pill or capsule that contains nonprescription stimulants, as caffeine and ephedrine, but is made to appear like one containing illegal or prescription stimulants, as a...