noun
tumbler, gymnast, trampolinist, aerial artist, aerialist,
equilibrist, trapeze artist, contortionist, circus, performer, tightrope
walker, high-vaulter, somersaulter, bar swinger, ropewalker, ropedancer,
flying trapezist, circus athlete, aerosaltant, stuntman, stuntwoman, figure
skater, ballet dancer, aerial gymnast,
funambulist, clown, balancer, trap man*,
dangler*, stunter*, mat worker*, flier*, tramper*.