Quidam n. : Somebody; one unknown.

Example:
What are your opinions on Quidam by Cirque du Soleil?

Taxonomy
Quidam, Zoé, John, Hoops, Target, Chiennes, Boum-Boum, clown, Manipulation, performers, The Father, balloon, characters, Ball, Blanches, dances, on stage, Skipping Ropes.

Defination from the web:
Quidam is said to be the embodiment of both everyone and no one at the same time. ... Quidam's soundtrack was composed by Benoît Jutrás, and has been released in three editions featuring additional songs, alternative new cover ...