Addressing David Hyde Pierce

[Sammya]

Hi there!

This might sound like a stupid question, so I'm sorry, but I'm going to write to David Hyde Pierce and I don't know how I should address him, Dear Mr. Hyde Pierce or Dear Mr. Pierce? What is part of his first name and what of his surname?

Thanks,
Sammya

[stellar_fuse]

Hyde Pierce is his surname.

[Sammya]

Thanks so much! I wouldn't be glad if I did a faux-pas, so I needed to know .