The good news is that all names can be changed before the final payment date. There are different rules if you are past the final payment period. Then at least one name in the stateroom needs to be the same as the original booking.

Yes, you can generally change the name of a guest on a Disney Cruise Line reservation, but there are strict conditions and potential fees. As long as at least one original guest from the initial booking remains on the reservation, name changes are permitted. If you attempt to change all names, it is considered a cancellation and a new booking at current prevailing rates. If the change occurs within the "cancellation fee period" (usually 90 to 120 days before sailing), Disney may charge a per-person name change fee, often around $50 to $100. Additionally, if you have purchased Disney’s air-inclusive packages or vacation insurance, those components are often non-transferable and would require a total re-purchase. It is crucial to finalize names before the "Advance Guest Registration" window closes to avoid complications with manifests and port security.