This is what we found on Wikipedia regarding the Simon Brodkin:

Simon Benjamin Brodkin (born 29 September 1977) is an English comedian, performing both on the stand-up circuit and in comedy television series. He is best known for playing a cheerful chav character called Lee Nelson, but also performs as other comedy characters, such as a Liverpudlian footballer called Jason Bent. Performing solo stand-up since 2004, he has also written for and appeared on the television shows Al Murray's Multiple Personality Disorder in 2009, Lee Nelson's Well Good Show in 2010 and Lee Nelson's Well Funny People in 2013.

Brodkin is known for taking part in pranks as his characters at public events, heckling public figures such as Sepp Blatter, Donald Trump and Theresa May.