According to answers.com Merlin, the inventor of roller skates, passed away May 4, 1803 in London.
By dieng from tuba
John Merlin Powis Smith died in 1932.
The person who acts as Merlin's friend Will is: Joseph Dempsie
John Joseph Graham died in 2000.
John Joseph Woods died in 1934.
Joseph John Skelton died in 1871.
John Joseph O'Connell died in 1949.
Joseph John Annabring died in 1959.
Joseph John Gurney died in 1847.
John Joseph Saunders died in 1972.
John Joseph Shute died in 1948.
John Joseph Boardman died in 1978.