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 Saunders died in 1972.
John Joseph Shute died in 1948.
John Joseph Boardman died in 1978.
John Joseph Cantwell died in 1947.
John Joseph Brennan died in 1976.
John Joseph Cotman died in 1878.
John Joseph Bennett died in 1876.
Joseph John Gurney died in 1847.