- Who is Aaron Chalmers “The Joker”? MMA, Age, TV, Record and Net Worthby KinyitaWho is Aaron Chalmers? Aaron Chalmers well known as “The joker” is a retired English Mixed Martial Art fighter and a television personality. He has competed in the BAMMA and Bellator where he performed excellently in both competitions winning five of seven fights in all competitions. As a Tv personality, he rose to fame after…