George Dimarelos began performing standup comedy in Sydney in 2011 before being part of his first standup comedy show - The Four Horsemen (now with bonus Horseman!) - in the 2013 Sydney Fringe Festival. He continued improving his observational comedic style before debuting his first solo standup show, George and Co (the solo tour), for a limited run at the 2014 Edinburgh Fringe Festival to positive reviews. During that time overseas he also performed in London and New York.

Upon returning to Australia he moved back to his hometown of Melbourne and continued gigging on the Melbourne standup comedy circuit. In 2015 he performed a full run of his updated comedy show at the Edinburgh Fringe Festival. Following this up with performances in the Perth and Adelaide Fringe Festivals 2016 and a sellout run at the Melbourne International Comedy Festival.

His next show, Self Sabotage, debuted at 2017 Perth Fringe World and played across Adelaide, Melbourne, Sydney and Edinburgh.

George also writes and performs sketch comedy as part of the 5MA Productions team and is currently studying at the Melbourne Actors Lab.