Zelig-like
/ˈzɛlɪɡlʌɪk/adjective
Designating a person who is able to change his or her appearance, behaviour, attitudes, etc., so as to be appropriate in any circumstance, or who is unexpectedly associated with important or famous people; characteristic of such a person.
Origin
1980s; earliest use found in The Texas Monthly. From the name of Leonard Zelig, the eponymous character in the 1983 film by ‘Woody Allen’ + -like.