The following is a list of famous people who are believed to have been polydactyl:
Anne Boleyn - Said to have had eleven fingers, although she only had a double fingernail and a lump on her little finger [1] (http://www.straightdope.com/classics/a3_053.html)
Antonio Alfonseca, relief pitcher for the Atlanta Braves, as of the end of the 2004 baseball season. See a picture here [2] (http://www.librarising.com/twelve.html).
David Sedaris is sometimes claimed to have a sixth toe on one of his feet, but in fact does not. The rumour appears to have been started by the owner of an Internet fansite, solely to see if he could successfully spread a rumour.
OntariopremierMike Harris was the subject of a similar rumour in 1997, after a newspaper obtained a photo of him as a youth in swimming trunks and barefoot, in which he appeared, through the same type of optical illusion as the Marilyn Monroe photographs, to have six toes on one foot. Several days later, he showed his foot to the press to prove that he only had the usual five toes after someone agreed to donate money to charity for showing his foot.
Marilyn Monroe is believed by some people to have had sixtoes on one foot, but this is an urban legend (due to two misinterpreted photographs) and is untrue.
David Sedaris is sometimes claimed to have a sixth toe on one of his feet, but in fact does not.
Ontariopremier Mike Harris was the subject of a similar rumour in 1997, after a newspaper obtained a photo of him as a youth in swimming trunks and barefoot, in which he appeared, through the same type of optical illusion as the Marilyn Monroe photographs, to have sixtoes on one foot.