Mr Billy Invincible

Mr Billy Invincible (born William Clyde) was a veteran of WWII who participated in the D-Day Landings. After the official end of WWII in 1945 he returned to his native London. Being so full of hatred at having lost so many good friends to the Nazis, he took up bare knuckle boxing under the name Billy Invincible. In 1948 he was recruited into Department T of British Military Intelligence because his military training and powerful hatred of the Nazis made him an ideal choice for Operation H, which would, much to the chagrin of Hugh Charlesworthy require a certain amount of thuggery.