Aw, boo. Last name is 5 letters, one syllable, and ends in "n". But you're right, the 'n' thing, I don't like. Thanks for pointing it out!
Maybe it would work better as a middle name for some of my other favorites:
Jasper Dean
Augustus Dean
Hudson Dean (Again, the 'n' endings)
Nicholas Dean
Oliver Dean (I really like this one!)