It isn't. There's a very standard way to pronounce that name, at least in American English. What I've noticed is that some people try to push a more French pronunciation of his first name, where instead of a full R sound its almost like a D. Jon Anik always does this, saying his name almost like 'Siddle'.
It's always a little weird when people try hard to avoid the anglicization of their name when they are in an English-speaking country. Anywhere you travel, people are going to say your name a little differently, they aren't trying to belittle you. When in Rome...