Muthukaalai was born in [[Rajapalayam]] and dreamt of becoming of a [[Stunt]] [[Choreographer]].<ref name=vik>{{Cite web|url=https://cinema.vikatan.com/tamil-cinema/156705-comedy-actor-muthukalai-shares-his-movie-experiences|title='' 'செத்து விளையாடலை.. உயிரோடுதான் இருக்கேன்'ங்றதே வலிங்க..!'' - முத்துக்காளை|website=www.vikatan.com/|access-date=2019-12-16|archive-url=https://web.archive.org/web/20191216034532/https://cinema.vikatan.com/tamil-cinema/156705-comedy-actor-muthukalai-shares-his-movie-experiences|archive-date=2019-12-16|url-status=live}}</ref> He attained black belt in Karate at the age of 18.{{citation needed|date=July 2020}} He made his acting debut with ''Ponmanam'' (1997) and went on to portray comedic characters and he gained popularity with his appearances in the comedy tracks of Vadivelu.<ref>{{Cite web|url=https://cinema.dinamalar.com/tamil-news/53564/cinema/Kollywood/vedivelu-is-my-guru-says-actor-muthukalai.htm|title=வடிவேலுதான் எனது குருநாதர்! -சொல்கிறார் முத்துக்காளை | vedivelu is my guru says actor muthukalai|date=29 November 2016|website=தினமலர் - சினிமா|access-date=16 December 2019|archive-url=https://web.archive.org/web/20191216085717/https://cinema.dinamalar.com/tamil-news/53564/cinema/Kollywood/vedivelu-is-my-guru-says-actor-muthukalai.htm|archive-date=16 December 2019|url-status=live}}</ref>
