many carnavalescos are also the plot developers while others offer the theme suggestions.

typically there is only one carnavalesco per samba school, however occasionally samba schools employ more then one - usually carnevalescos have a background in the visual or performing arts.

one of the most famous carnevalescos in the history of rio's carnival is paulo barros, who in 2011 conceived an unforgettable comissão de frente for unidos da tijuca whose members removed their own heads while parading.