Zelig

Ze*lig
(n.) A human chameleon. An under the radar skillsman of all trades that can adapt to any social environment with little to no effort.
Word originates from a 1983 mockumentary where Leonard Zelig, a nondescript enigma, who, out of his desire to fit in and be liked, takes on the characteristics of strong personalities around him.

Damn!, Kevin Heart was like a fuckin Zelig !!!, Saw him in Jumanji and checked out what all he has done, and he's been awesome in over 15 other movies I already own!