Assuming you are a US Citizen you do NOT have to have your passport for this cruise. NON-US Citizens must have a valid passport.
Since it is a 'closed loop' sailing (leaving from a US port and returning to the same US port) all you really need is a valid Drivers License with a photo and your original birth certificate.
With that said I STRONGLY suggest getting your passport renewed before the cruise. If by some strange twist of fate you need to fly home from a non-US port you would need your passport.
Take the time and try to get your passport renewed.
If/when you do please make sure Tracey has the new passport info so she can forward it to DCL - TraceyH@DreamsUnlimitedTravel.com
Thanks John! I just wasn't sure since it expires 2 months after the cruise if that was an issue. I'll go ahead a renew it.
Amanda