quick-change artist

noun2

1. •
   An entertainer whose performances involve rapid changes of costume.

   • Only then Nombe must be something of a quick-change artist since but a little while before she was beyond doubt personating the dead Mameena. — 1917
2. •
   (figurative) Someone who rapidly changes their views, occupations, appearance, behavior, etc.; something that rapidly changes its form or function.

   • Mr. Churchill, with his well-known ability as a quick-change artist, had become a full-blooded protectionist — 1931